Natalie Portman double 'expected more credit'

The dancer who worked as Natalie Portman's double in ballet thriller Black Swan has said that she blames her own naivety for the alleged lack of credit for her work in the film.

Sarah Lane, a professional ballet dancer who was used for the more complex dancing sequences in Darren Aronofsky's film, has accused the director and studio Fox Searchlight of passing off significant portions of her performance as Portman's.

E! Online reports that Lane said: "It was all my fault really because I didn't have a manager.

"I thought they would kind of take care of me because they were really encouraging and really sweet and always saying how amazing I was. They were kind of rooting me on when I would have to do shots that were really hard and almost impossible even for a professional ballet dancer."

A professional source told the network that Lane was "exploited" by Fox and added that she is "very modest [and] an absolutely beautiful ballerina, one of the best at ABT, but she does not clamour for attention at all".

Fox Searchlight and Aronofsky have denied Lane's suggestions, with the director saying that 90% of the dancing on film was performed by Portman.

Portman's Black Swan co-star Mila Kunis has spoken out in defence of the actress, saying that Lane acted as a "safety net" for Portman in her Oscar-winning role.