As already stated, Shoot 'Em Up, doesn't belong on the list. It's so obvious that it's not trying to be serious and just fun and it usually works well.
I think Southland Tales's bad rap is a bit unfair too. It's absolutely flawed, and messy, but at the same time, at least aspires to be something different, and will surprise you. Even if it's a little pretentious.
In a way, it's like Shoot 'Em Up in that some of the things that seem lame or over the top are done within a certain logic. Although it's nothing like Shoot 'Em Up in terms of context and style.
Not everyone will like it, but it's probably worth checking out on DVD, if you liked Donnie Darko (same director).
Oh, yeah and RE: Extinction sucked balls. When did the zombies in RE become DoD Remake Zombies? Why didn't all those clone bodies decompose? Why does Millia Jovoich have to be

ing Neo in Resident Evil? This didn't even feel anything like a movie, but a bunch of shitty one-off scenes glued together with CG blood.