Many actresses insist on a 'nudity rider', an agreement about what can and can't be shown when doing nude scenes.
But not confident Anne who strips off regularly in scenes with her co-star Jake Gyllenhaal in new flick Love and Other Drugs.
And while the 28-year-old admits she was nervous about baring all, she says she wanted to turn down the nudity agreement she was offered.
She told British Elle magazine: 'I decided I didn't want to be doing these scenes and thinking, 'Oh, I can only turn my body 36 degrees, because we'll be breaking the contract'.'
The Hollywood star said she is beginning to embrace her body.
Hathaway added: 'I've hit the point in my life where I understand that being skinny is not sustainable, and nor is it advisable, and nor is it enjoyable.'