Step 1 : Introduction to the question "In which film does Robin Williams play a character named Dr. Sean Maguire?"
...Good Will Hunting is a 1997 film starring Matt Damon, Robin Williams, Ben Affleck, Minnie Driver. The film follows 20-year-old South Boston laborer Will Hunting (Matt Damon), an unrecognized genius who, as part of a deferred prosecution agreement after assaulting a police officer, becomes a patient of therapist Dr. Sean Maguire (Robin Williams) and studies advanced mathematics with a renowned professor. The film won two Academy Awards, including the Academy Award for Best Supporting Actor for Robin Williams and Best Original Screenplay for Ben Affleck and Matt Damon.