Kevin Spacey says the cast of 'Horrible Bosses 2' spent most their time laughing on set.
The 54-year-old actor is working on the sequel to 2011's 'Horrible Bosses' and insists his co-stars Jason Bateman, Charlie Day and Jason Sudeikis had everyone in stitches of laughter while they were "riffing" and "improv-ing".
He told collider.com: "I think it is a little bit crazier. I'm very glad that almost everybody is back for it and I so love working with Jason and Jason and Charlie because being opposite them in a scene when they're riffing and they're improv-ing and they're trying different ways to do scenes, it is the hardest thing in the world not to absolutely lose your cookies. We spend most of our time laughing and any time somebody wants to pay me to come and laugh all day long, I'm there."
He added: "It's like that, those guys that just are innately funny, they just are. Anything they say, they just go off and they're so good at it. I love being around them, it's just great."
'Horrible Bosses 2' is being directed by Sean Anders and is set for a November 2014 release.

Britain's Prince William will host a charity dinner at Windsor Castle on 13 May.
The Duke of Cambridge will welcome a host of A-List stars including Kate Moss, Emma Watson, Mario Testino, Cate Blanchett, Cara Delevingne and Benedict Cumberbatch to the event which is being held in support the Royal Marsden Cancer Charity.
William, 31, is said to be hosting without Duchess Catherine - who was known as Kate Middleton before they wed.
Last November William saw patients go under the knife at the Royal Marsden Hospital after meeting the medical teams led by surgeons Stuart James and Pardeep Kumar.
The patients, a woman in her 60s undergoing breast reconstruction and a man in his 80s having a tumour from his bladder removed, allowed the second-in-line to the British throne to watch their operations, but did not get to meet him beforehand.
The young royal became president of the hospital in 2007, following in the footsteps of his mother, the late Princess Diana, who was president from 1989 until her death in 1997.
Upon taking up the role, the prince said: "The Royal Marsden does an extraordinary job in treating thousands of cancer patients every year. The standards of care and compassion of its staff are unsurpassed in the world.
"Therefore, I am delighted and honoured to become President of the Royal Marsden and will do whatever I can to support its innovative and vital work."nd will do whatever I can to support its innovative and vital work."

Emmerdale's Natalie J. Robb wants a "simple but beautiful" wedding.
The 39-year-old star's alter-ego Moira Barton is set to marry Cain Dingle in the soap and although she's in a relationship she's not ready to tie the knot but has been thinking about marriage in light of her story line.
She said: "Being an Emmerdale bride does make you think about how you'd do things.
"For Moira and Cain it's the whole traditional thing but that isn't for me. It wouldn't be a big, white wedding -- I'd want to do something simple but beautiful. Not that I'm in any rush to get married. In real life it's never really been a big thing for me."
Natalie insists filming scenes in preparation for the big day have given her an idea of how stressful the big day can be in real life.
She added: "Even just filming these scenes makes you realise how stressful a wedding would be. Doing it for work was pressure enough, weddings seem to get out of control and I'm not sure how you stop that."
The brunette beauty got butterflies when she was filming her character's nuptials and admits it gave her a taste of what it would be like in reality.
She explained to The Sun newspaper: "It sounds a bit mad but I was actually quite nervous when it came to filming. When you walk down the aisle and all eyes are on you... despite acting for a living, I still felt really self-conscious.
"It's suddenly a bit too real. It's a bit overwhelming, so you can imagine what it would be like on your own day."

Justin Bieber was booed by the "entire" crowd at a basketball game yesterday (11.05.14).
The 'Believe' hitmaker got a less-than-impressed reception from fellow sports fans as Los Angeles' Staples Center when he took his mother Pattie Mallette to watch Los Angeles Clippers take on the Oklahoma City Thunder in game four of the NBA playoffs.
A source told E! News: "The entire placed booed him when Staples Center cameras put him on the jumbotron."
Despite getting booed at the game - which saw the Clippers edge a victory with a final score of 101-99 - Justin, 20, and his mother appeared to be having a great time, and were seen posing for a number of selfies.
Posting one picture of his mother holding a hotdog online, the Canadian singer wrote: "Took my mom to the game.. She's more focussed on the food."
Justin and his mom were spending time together in honour of Mother's Day in America yesterday, and before they headed to the game, the 'Beauty and the Beat' singer posted a tribute to his 38-year-old parent on twitter.
He wrote: "Happy Mother's Day to my amazing mom @pattiemallette. I love u with all my heart!! #HonorThyMother #HappyMothersDay. (sic)"
The posting was accompanied by a childhood photograph of the star with his mother.

Aaron Paul says marriage is the "greatest thing" to ever happen to him.
The 'Breaking Bad' actor celebrates his first wedding anniversary later this month and admits the first 12 months of marriage to wife Lauren Parsekian have been incredible
He said: "Marriage is the greatest thing that has ever happened. Look how cute she is.
"[The first year has] flown by - blink of an eye. [We're] going strong."
While Aaron, 34, remained tight-lipped on how the couple will spend their anniversary, his 26-year-old spouse said they are "going somewhere fun" to celebrate.
She added to People: "It'll be an awesome time. It's been an amazing year. It's flown by."
At the weekend, Lauren was honoured at the Open Hearts Foundation's 4th Annual Gala for her work with anti-bullying organisation Kind Campaign and her husband was delighted to be by her side to support her.
He gushed: "I couldn't be more proud of her. I feel so blessed to be able to share this evening with her - let's be honest, I feel blessed to share any evening with her.
"The back of my head hurts from smiling so much. I always sit back and applaud her on a day-to-day basis. It's nice to see everyone else applaud her tonight."

Simon Cowell has installed an electric fence around his London mansion to protect his dogs from foxes.
The 54-year-old music mogul, who lives with his partner Lauren Silverman and their three-month-old son Eric, has gone to extra measures to protect his beloved Yorkshire Terriers, Squiddly and Diddly, from the pesky animals.
A source told The Sun newspaper: "This shows how much they love the dogs.
"They have put a wire along one wall where they think foxes would come from. There were signs of them in the garden and obviously Squiddly and Diddly would be no match for a fox."
The 'Britain's Got Talent' judge was alerted to protect the dogs after a neighbour saw a fox in his garden and although the fence will not harm the animals , it will shock them and he hopes that will stop them from returning to their $12 million property.
Simon and Lauren, 36, bought their dogs in 2013 and the pair dote on them, despite their bad behaviour.
Last year Diddly urinated on the floor of an exclusive store in Beverly Hill, Los Angeles, while Squiddly ruined a plush cream carpet of their London home as Simon was being interviewed.

Katie Price is seeing a psychic for advice about Kieran Hayler.
The former glamour model - who is six months pregnant with her fifth child - is struggling to cope in the wake of discovering her husband has been having a "full blown sexual affair" with her married best friend, Jane Pountney, for the last seven months and is seeking spiritual guidance to help decide whether she should end their marriage for good.
The 35-year-old star's mother Amy has also been pushing her to consult a medium, despite one advising her to marry Kieran last year, leading her to tie the knot with the part-time stripper after a whirlwind romance.
A friend of Katie's told The Sun newspaper: "She's a big believer in psychics and Amy wants her to feel it'll be OK in the end. Things are so awful, she needs spiritual guidance. She wants to ask about the consequences of a divorce.
"It's hard for her, especially as she's worried about her pregnancy, but this might give her hope."
Katie previously admitted she had wed Kieran because a psychic told her the man of her dreams would be called Kelvin, and she decided his name was "close" enough.
However, the pal insists the mother-of-four isn't taking things likely and she is desperate to make the right decision for the sake of her children, Harvey, 11, Junior, eight, and Princess Tiaamii, six, from previous relationships, as well as nine-month-old baby Jett, her son with Kieran.
The source added: "It's no laughing matter for her. She's desperate for answers. She thinks they're scheming to get their stories straight. And she says Jane would have liked flings with several of her exes - but only Kieran was stupid enough to fall for it."

Sarah Jessica Parker and Jessica Lange have been cast in 'Wild Oats'. The 49-year-old actress - who was catapulted to the spotlight following her role as Carrie Bradshaw on HBO series 'Sex and the City' - and the award-winning 'Blue Sky' actress will ...

Kiefer Sutherland doesn't think a '24' film will ever happen.
The 47-year-old actor reprises his role as fugitive former Counter Terrorist Agent Jack Bauer after four years away in new series '24: Live Another Day' and although a movie version of the TV programme was mooted in the past he thinks the moment has now gone.
Kiefer also doesn't think the format of the show - real time events set over 24 hours - would be easy to translate into a film.
Kiefer said: "I think we had a run at a movie, I'm sure there are a lot of reasons why that didn't happen, I don't know all of them. 20th Century Fox is a very big company, we work with the television production end, the film end is a whole different group of people and another thing. For whatever reason that didn't happen, I think Season 8 when Jack looks up at that camera and he's given a 15-minute window to go dark and disappear that was the set up for the movie to potentially happen ... I don't see a film shaping itself around what we're doing right now. In all fairness trying to do a two-hour version of a 24-hour day would be impossible. But to go from 24 episodes down to 12, I've found this format right now to be the most interesting so this is what we're going to focus on."
Kiefer believes one of the main motivations for lead writer Howard Gordon bringing back '24' was that he was unhappy with how Season Eight ended for Jack.
He added: "I think one of the reasons why Howard really wanted to do these 12 episodes and where the idea came from for him as a writer was to end it, to bring a sense of closure to the show. That was a big part of it."
'24: Live Another Day' airs on Wednesdays at 9pm on Sky 1 HD and Sky 1 +1.

Danniella Westbrook wants her own reality TV show.
The former 'EastEnders' actress believes her home life with her boyfriend of six weeks, Tom Richards, and her children Kai, 17, and Jodi, 12, would make fore hilarious viewing and she's ready to let the cameras follow her around 24/7.
Quizzed on what she and Tom had planned for the future, she said: "We're talking about getting our own reality show. I always say my house is like a circus, so it'll make good TV."
The 40-year-old star - who began a relationship with the cage fighter after her 12-year marriage to Kevin Jenkins ended in January - famously battled a £400-per-day cocaine addiction during the 90s, but she's admitted even the end of her marriage didn't tempt her to back to the drug.
Quizzed on whether she's ever feared a relapse, she told Closer magazine: "Not once. It's been difficult, but I ended things with Kevin because I wasn't happy. I feel free now."
Danniella claims her relationship with her ex fell apart because he wasn't supportive of her work as an actress.
She explained: "It all came to a head last Christmas. I was doing panto in Portsmouth for eight weeks and he never came to see the show once. One day he called me and I just snapped. I told him to pack his bags and not be there when I got home. I'd had enough."

Retired Brazilian footballer Pele is a One Direction fan.
The 73-year-old star made a "surprise appearance" at Estadio Morumbi in Sao Paulo on Saturday night (10.05.14) where Harry Styles, Zayn Malik, Louis Tomlinson, Niall Horan and Liam Payne were performing as part of their 'Where We Are Tour'.
Coming up on a big screen for a cameo, he said: "I admire and love you.
"I play the guitar and one day we'll play together. I don't want to play football, we'll play guitar, OK? Welcome to Brazil again and good luck."
The sportsman is reportedly in talks with the boys to collaborate and perform with them.
A source told the Daily Mirror newspaper: "Pele does a lot of work for charity and is keen to make this happen. He is an enthusiastic amateur musician and genuinely excited about the prospect of playing guitar with Niall.
"At the moment a list of potential dates and venues are being discussed but it is looking likely that this will happen. Obviously the boys say they are happy to wear the Brazil shirts in return."

Harry Styles' One Direction bandmates mock his "girlie" diet.
The 20-year-old hunk is on the 'Where We Are' tour alongside Zayn Malik, Louis Tomlinson, Niall Horan and Liam Payne who find his health kick "funny" and are placing bets on when he'll get sick of green tea and sushi.
A source told The Daily Star newspaper: "Alongside the normal menus, Harry has put in his own special request of one sushi meal and five cups of green tea a day.
"His pal Nick Grimshaw initially got him into it.
"But the other boys are now betting money on when he'll crack.
"They want none of the sushi and green tea, and find it funny he's asking their chefs to prepare what they consider girlie food."
1D all eat together and to maintain some sort of routine they use the same tablecloth and napkins.
The source added: "They all eat together at the same table - which has the same powder blue and white spotty tablecloth and napkins in every city.
"It helps give them a sense of routine and homeliness."
One Direction ended the South American leg of their tour on May 11 in Brazil and are set to take to the stage in Dublin on May 23 as they hit Europe.