Many Faces - Actors Who've Worn Prosthetic Makeup
Joseph Gordon-Levitt, 'Looper'
In Looper, Joseph Gordon-Levitt plays a younger version of Bruce Willis' character. Accordingly, his face was transformed to look more like the older action star. Levitt endured 3-4 hours every day in makeup and wore green contact lenses on top of studying Willis' speech patterns. Hear him talk about it here.