One must be pretty sharp to think about this movie.

Rating: 8/10 (10 July 2006)

Slight Spoiler!
I was really impressed when I saw this for the first time, and out of all of the actors, I focused my attention on Robin Williams. Usually an actor in works of comedy, his role in this movie was serious. Never had I seen such fine acting on Robin's part. This movie really defines his ability as an actor.
This movie requires one to think pretty quickly, as you can miss a lot of the detail as you head into the movie. This kid, who plays as a janitor has the mind of a math genius, however, he has a troublesome life. Robin's character eventually shows him the path that he should follow to make his life better, and put his "gift" to use.
I rate this very highly. It's an excellent movie. Not entirely family-friendly, but the adults and teenagers both might have something to appreciate.