It's about a janitor at MIT who is an undiscovered genius (Matt Damon) who comes to the attention of one of the professors but then gets into trouble. As such he has to start seeing a psychologist (Robin Williams) who tries to help him find the right direction in life while the professor teaches him.

Unlike the other two, it's fiction but it's still very moving, thought-provoking & inspirational. I'm sure you'd like it. Fantastic film.