Naomi Watts has regrets about playing Britain's Princess Diana.
The Oscar-nominated actress took on the role of the much loved princess in the recent biopic 'Diana', which told the story of her split from Prince Charles and her consequent relationships, and she's confessed that it may have been a mistake to make the film.
She told Harper's Bazaar magazine: "I got seduced by the fantastic character. Diana did a lot of things that had positive and negative results. She was multifaceted.
"But ultimately there were problems [with the film] and it ended up taking a direction that was not the one I was hoping for."
However, the 45-year-old star claims she doesn't completely regret doing the film as she knew from the beginning that it would be a challenge.
She added: "With risk there is every chance it's going to fail. If you have to go down with that sinking ship, so be it."
'Diana' - which was directed by Oliver Hirschbiegel - experienced an unsuccessful run in the box office when it was released in September last year and was further criticised when an advertising poster for the film was erected near the tunnel in Paris, France where Princess Diana and her boyfriend Dodi Fayed lost their lives in a car crash in 1997.

Darren Aronofsky's divorce stopped him from directing 'The Wolverine'.
The 45-year-old director had been in talks to take the reigns on the sixth installment of the 'X Men' series and despite confessing that he loved the project, he says he couldn't commit to it because he was in the middle of his divorce from 'The Mummy' actress Rachel Weisz.
He told MTV News: "I loved the script and I thought the film came out great. I just had...it was a hard time in my life.
"It was complicated. I couldn't leave New York for that long an amount of time."
The 'Noah' director, who is currently promoting the film's release, also revealed that the opportunity to direct the biblical adventure was more important to him.
He added: "And, to be honest, the possibility of 'Noah' had started to emerge, and here was something I'd been thinking about for years. I was really excited by that."
Despite turning down the role of director on superhero flick 'The Wolverine', Aronofsky - who was reportedly in talks to take the helm of 'Batman vs. Superman' - has admitted that he would definitely have been interested in the job which has been snapped up by Zack Snyder.
He said: "Superman's one of the holy grails. It's Superman. It's the best superhero. Batman is great, of course, but it's Superman. He's the same level. That possibility was great."

Pink's court case against Specialists Entertainment production company has been dismissed.
The singer's record label Sony Music will get to keep the $36,213.31 they were accused of withholding in royalties to two producers, who claimed they were owed the cash for working on two tracks, 'Hiccup' and 'Can't Take Me Home', from the star's 2000 debut album of the same name.
According to RadarOnline.com, a New York appeal court sided with Pink - real name Alecia Moore - and her label on March 4 and have dismissed the case.
The site reports that the legal documents explained that "granted plaintiff's cross motion to amend its complaint to add a lain for breach of contract as a third-party beneficiary as against defendant Sony Music Holdings, Inc., unanimously reversed, on the law, without costs, the cross motion denied, and the complaint dismissed.
"The agreement, requesting and authorizing Sony to deduct a portion of royalties payable to Moore and to pay them directly to plaintiff, by its express terms, negates any intent to permit enforcement by third-parties."
It was ruled the producers cannot claim money from Sony because the agreement was with Pink.

Charlie Sheen has thrown his final wild party before getting married.
The 'Anger Management' star hosted a bash in November last year with a predominantly-female guest list but his now-fiancée Brett Rossi warned it would be the last one he threw.
A guest of the event at Charlie's Mulholland Estate in Beverly Hills said: "It was just a great party. Being a 'Charlie Sheen party, there was - like always - more girls than guys. Everyone was getting along very well, except for one person."
The 48-year-old actor's porn star girlfriend was reportedly furious with the guest list at the shindig and made it clear to her partner that the night was to be his final hurrah before settling down with her for good.
The source added: "She was not impressed. All of the guests had their cell phones confiscated and everyone signed non-disclosure agreements. The party had sky writers, fantastic food and Charlie was clearly having fun.
"Little did he realise it would be the last party he would be hosting like that for a very, very long time!
"As long as Brett is in the picture, there will be no more parties with Charlie's harem of women."
Charlie proposed to his girlfriend - who is half his age at 24 years old - while on a Valentine's Day (14.02.14) trip to Hawaii but the wedding is currently on hold as she is yet to finalise her divorce from her first husband, Jonathan Ross.

Jennifer Love Hewitt's wedding was "really sweet".
The 34-year-old actress tied the knot with her 'Client List' co-star Brian Hallisay just days before their daughter Autumn was born last November, and their intimate ceremony was very special.
She said: "I got married . . . Five days before she was born, basically.
"It was just the two of us and then we went to Bed, Bath and Beyond because that's what married people do.
"It was very, it was really sweet and he's an awesome, incredible father and a great husband and I just feel really lucky."
Though 'The Ghost Whisperer' actress' daughter is just four months old, she is very musical and Jennifer already thinks she will grow up to be a dancer.
Speaking on 'The Ellen DeGeneres Show', she said: "She's fantastic. She's sleeping better now, not so much in the beginning, which was a little rough. But, she's a great sleeper now.
"She watches your show everyday. We both get very excited when the theme song starts and she watches you dance.
"She's big into hip-hop and Latin music for some reason. She does the Dougie...I take her arms and do the Dougie...The second the show comes on and you start dancing she like she does this weird kick thing with her leg and she gets her little chair. She loves it. I think she's gonna be a dancer. I really do. She loves it."

Halle Berry takes her children to work with her.
The 47-year-old actress - who has daughter Nahla, six, with ex-partner Gabriel Aubry and son Maceo, five months, with husband Olivier Martinez - is trying to find "balance" in her professional and personal life, and makes her trailer as "nice" as possible for her kids to join her on set.
She explained: "What I'm learning to do, trying to do right now, is find the balance.
"My baby is always with me on set. I bring my daughter after school. I have a nursery there, a playroom for her, so I try to make it as nice as I can for them to spend time with them, see them."
The 'Frankie and Alice' star has already got back in shape since having her son, and credits breastfeeding and eating sensibly with helping her regain her slim figure.
In an interview with 'Extra', she added: "Every mother should breastfeed. It's the quickest way to shed the initial weight and then you have to eat right."
The actress also said her daughter is thrilled with her new baby brother.
She explained: "It's like one of her doll babies came alive. She gets to take care of him, feed him, change his diapers, play with him, dress him up in different clothes like five times a day because she can, so she loves it."

Lily Aldridge looked every inch the supermodel as she jetted into to LAX airport in Los Angeles. The Victoria's Secret angel teamed a snake print sweater with oversize aviator shades.

Lady Gaga hit the town following her performance at the Roseland Ballroom.The singer wore hot pants and fish net tights for her night out with pals at the Rivington F&B bar in New York.

Rosie Huntington-Whiteley showed off her enviable legs in a grey mini-dress and pink blazer as she arrived at the Vogue festival in London.

Emma Watson looked picture perfect in a a white halterneck gown as she stepped out at the London premiere of her new movie 'Noah'. The 'Harry Potter' actress was joined at the event be her co-stars Russell Crowe, Jennifer Connolly and Hugh Jackman.

Rita Ora stepped out in a bizarre Spongebob Sqaurepants-inspired dress as she left the BBC Radio 1 studios in London. The singer then headed towards Leicester Square where she released hundreds of Rita Ora balloons to promote her new album.

Taylor Swift stopped by Starbucks for a pick me up as she ran errands around Tirbeca, in New York City. The 'Red' singer clashed her navy blazer with a vibrant orange shoulder bag.