Natalie Portman Makes Surprise Appearance on Stage with Role Model in N.Y.C. Natalie Portman And Mila Kunis Hot Kissing Scene In Black Swan 11 Mobility Exercises for Strength Training From Nike Master Trainer Joslyn Thompson Rule How Zac Posen Went from Making Ball Gowns to Remaking the Gap The New Yorker In Black Swan (2010), Natalie Portman underwent an extreme transformation to play the ballerina Nina. She trained intensively in ballet for over a year, practicing five to eight hours a day, even