In my opinion, this is easily Sean Penn's best performance and he has had many great ones.I was just starting a nasty custody case when I saw this movie for the first time and I was moved in so many ways. I could watch this movie over and over again, the music (all Beatles covers) was done perfectly, and Penn's performance was done so well he had a certain innocence about him that was just heart wrenching at times because of how bad he was being treated by the system and he just kept doing what he thought was right and the one point in the movie when he was on the stand and sounded like he was making perfect sense and it ended up he was just quoting something he heard from someone else saying(other people's names included),it really makes you feel for him and you just wish that they would give him his daughter back. Eventually things turn out in his favor, which I wish would happen for me but unfortunatly, I live in the real world! GREAT MOVIE, GREAT PERFORMANCES,GREAT STORY, GREAT MUSIC, GREAT, GREAT, GREAT!!