Can't wait for the third chapter in the Christian Bale-Christopher Nolan Bat-franchise? Not so fast. Here are five reasons to think they should leave well enough alone.
Superman III (1983): The Christopher Reeve-led series took a head-first splat thanks to a baffling veer towards slapstick and the ill-advised addition of Richard Pryor.
The Godfather III (1990): Here's an offer we could refuse: Sofia Coppola acting. She drags this otherwise mediocre third chapter in the Corleone saga down like a pair of concrete galoshes.
Alien 3 (1992): Hard to believe this disastrous production was directed by David Fincher, who went on to make Fight Club and Zodiac. Cardinal sin: killing off all the characters we cared about in James Cameron's vastly-superior Aliens.
X Men: The Last Stand (2006): Bryan Singer bolted for Superman Returns and left Marvel's mutants in the clutches of Rush Hour's Brett Ratner. The result? Wolverine weeps like a schoolgirl -- more than once. Cyclops and Professor X get whacked. And any interest in enduring X-Men 4 vanishes like Kitty Pryde through a wall.
Spider-Man 3 (2007): After the nimble wit of Spider-Man 2, director Sam Raimi got bogged down by villains and dopey melodrama. You know a movie's gone off the rails when the hero's descent into darkness is illustrated by his emo haircut.