Good Will Hunting is a 1997 American psychological drama film directed by Gus Van Sant, and starring Robin Williams, Matt Damon, Ben Affleck, Minnie Driver and Stellan Skarsgård. Written by Affleck and Damon, the film follows 20-year-old South Boston janitor Will Hunting (Damon), an unrecognized genius who, as part of a deferred prosecution agreement after assaulting a police officer, becomes a patient of a therapist (Williams) and studies advanced mathematics with a renowned professor (Skarsgård). Through his therapy sessions, Will re-evaluates his relationships with his best friend (Affleck), his girlfriend (Driver), and himself, facing the significant task of confronting his past and thinking about his future.