The 20-year-old Twilight star, who portrays a stripper in the new film Welcome to the Rileys said that the difficult role changed her forever.
She told MTV News, 'As much as every character definitely sticks with you and you wear part of that, I sort of figured that it's like any life experience that you have that is a big deal.
'It changes you and shapes you in a certain way.
'If you do a movie, especially this one - not the easiest thing subject matter-wise - it stuck with me.
'But not in a way that's like, 'Oh, I can't stop thinking about how horrible that was.''