Lists are stupid. Let's talk about important films instead.
Got to give credit to Crouching Tiger, Hidden Dragon, for bringing foreign - namely Asian - cinema into the mainstream. Pan's Labyrinth comes along and turns it into a revolution.
The Fellowship of the Ring, along with Harry Potter, revived fantasy as a viable genre.
The Ring brought Asian horror to American shores, and Saw created a bonafide subgenre.
Old School revives the R-rated comedy.
Danny Boyle and Zack Snyder reinvented the zombie genre.
Batman Begins is probably the most important film in terms of franchise blockbusters. It created a template that was used by James Bond, Star Trek, etc. If you need to reboot an old, tired series, this is your go-to film now.
Speaking of Bond, former-sissy boy Matt Damon reinvents the spy/action genre with a series of films about an amnesiac CIA assassin that cares.
Chicago revives the musical, but not really.
Shrek proves that successful computer animated films are not restricted to Pixar, the art form becomes the animated standard as a result.
Fake "indie" cinema exploded this decade (films produced by majors through their small labels and micro budgets), spearheaded by stuff like Brokeback Mountain.
Michael Moore, for better or worse, pushes documentaries into the mainstream.
Juno makes Diablo Cody into a star.
Fox inadvertently creates comic book adaptation gold rush with the release of X-Men.
Paul Haggis continues to trick people into giving him money.
Judd Apatow, having slowly sucked out all of the creative energy from John Hughes, succeeds in finally killing him.
