If only the filmmakers had trusted the material and the audience a little more, then
I am Sam would not feel so manipulative and dishonest. But by making anyone who thinks that maybe a child needs more than a retarded parent can provide look like a monster, they turn the characters into cardboard. The glowing last scene, with Sam performing in a role that is clearly beyond what he has been shown to be capable of, is just phony. Yeah, I cried, but I was annoyed about it.
But Sean Penn gives a first-rate performance here, and Michelle Pfeiffer holds her own. In smaller parts, Dianne Wiest, Richard Schiff, Mary Steenburgen, and Laura Dern are all very fine as well, and the soundtrack of Beatles songs recorded by some of today's best artists, is a genuine treat. The real miracle of the movie, though, is tiny Dakota Fanning, who gives a performance of such sincerity, subtlety, and delicacy that she almost carries the entire movie herself.