Winner
The Dark Knight: "Why so serious?"
Nominees:
The Dark Knight: "Why so serious?"
Tropic Thunder: "You went full retard, man. Never go full retard."
In Bruges: "If I grew up on a farm, and was retarded, Bruges might impress me but I didn't, so it doesn't."
Tropic Thunder: "I know what dude I am. I'm the dude playin' the dude, disguised as another dude!"
Wanted: "Shoot *this* motherfucker!"