According to a recent poll*, the worst words to use in a movie title included: cop, future, karate,  ninja, robot, cyborg, beast, Bruce, darkness, and cyber.

From this I deduce the worst movie title possible would be:
Bruce Future and the Cyborg  Karate  Cops Versus the Ninja Robot Cyberbeasts of the Outer Darkness.

I have this sneaky feeling that someone, somewhere, is already trying to get this funded.  Worse, there are people who will feel compelled to watch it if it gets made.