Heath Ledger plays Anakin Skywalker in all prequels

I generally work from the assumption that OTL is the worst possible case for a Star Wars movie and any chance at all that is plausible likely improves them. Without a total script rewrite they probably won't be good. But they'll probably a notch or two higher for a leading man that isn't atrociously annoying.
 
If he gets the same direction it could turn out just as badly. Lucas might keep doing takes until he gets awkward. Plenty of good actors give bad performances when the director demands it.
 
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