Smallville/The Dark Knight: World's Finest - Fan Trailer

How awesome would it be to see a Superman/Batman crossover film? There have been great pairings in the comics and some good work in animation. The next frontier would have to be a live action film. YouTube user mikemwp made this fan trailer for a World's Finest film using composited footage from Smallville, Superman Returns, Batman Begins, and The Dark Knight. It is pretty impressive for something done at home. Check it out: