Ledger (l) and Gordon-Leavitt (r).
One thing that weirded me out in "Inception" was how much Joseph Gordon-Leavitt resembles Heath Ledger. The guy's going to likely gobble up parts that would have gone to Ledger. I mean, what does it matter? Ledger's dead. But still, that they'd find a current actor who so closely resembles Ledger, and have him star in a Christopher Nolan movie, I couldn't help but wonder if Nolan had originally wanted Ledger for the part Gordon-Leavitt played.
