Question: who is the director of the drama film in which Stellan John Skarsgård had a role as Prof. Gerald Lambeau?
Sentence (from "Good Will Hunting"): Good Will Hunting is a 1997 American drama film, directed by Gus Van Sant, and starring Robin Williams, Matt Damon, Ben Affleck, Minnie Driver and Stellan Skarsgård.
Relevant evidence: Yes