With projects like Hellboy, Pan's Labyrinth and Pacific Rim under his belt, there's no doubt del Toro is a guy who can get some quirky and ambitious movies made. But, for every flick that actually makes it to the local theater, there are a half dozen others that crash and burn in development hell. He was originally supposed to direct The Hobbit, before exiting due to delays, and he's developed the passion project At The Mountains of Madness for years to no avail. Del Toro also developed DC's upcoming animated Justice League Dark as a live-action project, but dropped out due to timing. And that's not all: along the way, he's developed everything from a new take on Frankenstein to a Slaughter-House Five adaptation, a stop-motion Pinocchio story, his own take on Stephen King's It, and the aborted Silent Hills video game to name but a few. The guy is crazy ambitious, but not every project makes the cut.