Who is hero enough for that job?
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David Gordon Green
BEST KNOWN FOR: 'Pineapple Express,' 'Your Highness'
PROS: He's getting more and more comfortable with the technical side of big-budget stuff, and when people see what he's done in 'Your Highness,' they may be shocked. Actors love him, and he's used to letting people improvise, an important skill when working with Downey.
CONS: His action in 'Pineapple Express' was fun, but not really comic book bang pow zoom enough for Marvel.