"It was the second week and I did a scene where I had to scream at someone, and cry," she says. "And I remember feeling that I had gone outside of myself while I was doing that scene. I felt something I'd never felt before, a feeling of losing myself in what I was doing. I wanted to have that feeling again and again."
Source : http://www.nydailynews.com/entertainment/tv-movies/brittany-snow-puts-singing-dancing-skills-pitch-perfect-film-college-cappella-groups-article-1.1169626