I don't want it to be some massive blockbuster, but I don't want anything to indie and depressing.
A little humour wouldn't go amiss and a little punching people in the face would be appreciated.
This list of movies below would be ideal if I hadn't seen the before.

Zombieland
District 9
Being John Malkovich (wish I'd put this on my top 10 for the DiS movie thing)
Super
Serenity
Scott Pilgrim

See the sort of thing I mean, not something brainless but not far off. Anything great I might have missed?
What about God Bless America, anyone seen that?