Kunis: Dancer's body took five months to achieve

Mila Kunis gained back the weight she lost for 'Black Swan' in five days.

The actress - who stars opposite Natalie Portman in the Darren Aronofsky directed psychological thriller about a troubled ballet dancer - lost 20lbs over five months to achieve the body of a typical dancer for the film, but admitted she wasted no time in gaining it back once filming ended.