After Portman and Mila Kunis' intense performances for Black Swan, which required the actresses to train for multiple hours a day and live on a calorie-restricted diet, it's no surprise that they took on lighter material for their next films, both with the subject matter of friends with benefits. Portman starred in No Strings Attached opposite Ashton Kutcher, and Kunis starred in Friends with Benefits, opposite Justin Timberlake. Check out Mila's Glam Wallpapers...
