I haven't seen anything at the theaters since March of the Penguins.
No Serenity, have never been interested in Joss Whedon's work, and the trailers were just so uninspired they made it look like it was going to be a cheap Star Wars knock-off with more one-liners. At best it looked like a cross between Wing Commander and the Chronicles of Riddick. No thanks.
But I never seem to enjoy movies that are made solely for professional critics and the RPG/comic book crowd (didn't like Kill Bill, never had any desire to watch Sin City.)