Who wouldn't be impressed if Damon performed his own stunts in Good Will Hunting? Math is hard, right? Math problems aside, Damon is one of the most recognized action stars today for his work in the Bourne series. He’s performed a lot of his own driving and underwater action sequences. Damon even underwent three months of training in hand-to-hand combat, weapons, boxing, and Filipino Escrima to properly get into shape to play Jason Bourne.