Saw it last night and was looking forward to it after reading the (mostly) good reviews. Was quite disappointed in it. It has all been done before by Rainman (and done much better). I am a big fan of Sean Penn and his performance was indeed good but the rest let itself down. The producers have just churned out a copy of Rainman. It has been a while since I seen Rainman but from what I remember Sean Penn was dressed exactly the same as Dustin Hoffmans character, including the short trousers showing off his white socks. He even walked the same way. I think the best acters in it were Sam's friends. They were excellent and provided most of the good moments in the film. A 5/10 verdict. Soundtrack was good though.