9. Doom
Like Resident Evil, heres another videogame adaptation indebted to an earlier, better movie, but whereas Paul WS Andersons original film tipped its hat to Dawn of the Dead, Doom is Aliens filtered through the mind of an adolescent boy. You know the story: theres been a level 5 breach, so they send in the marines, who spend the rest of the movie getting their butts kicked in a series of dark tunnels. Karl Urban stands in for Michael Biehn, zombie-like creatures replace the Xenomorphs, and splatter is substituted for tension and character. Its ironic that James Cameron, whod already written one sequel (Rambo: First Blood Part II) and directed another (the awesome Piranha II: The Spawning), should follow Alien with one of the most widely praised sequels of all time, because this non-franchise movie has so little going for it. The characters behave like clowns, the plotting is for the birds and even though the explanation for the creatures is about as credible as it was in Resident Evil, its still gussied up with big words to sound scientific.