Galaxy Quest - nailed the sci-fi geek scene dead-on, without being too cruel - great performances by Tim Allen and Alan Rickman
Churchill: The Hollywood Years - got panned by critics, but I think it's a great parody of Hollywood's tendency to 'adjust' a story to make the US look better - Christian Slater is having great fun with this one
Grosse Pointe Blank - a very dark comedy about a professional killer who visits his hometown for a school reunion - some class acting from John Cusack, Minnie Driver and Dan Akroyd