In the scene where the convoy is driving through the entrance of the tunnel you can see the black helicopter the film crew uses right behind the police helicopter. See more...
Heath Ledger became very attached to his role. He would show up on the set, in full costume, even on the days he wasn't filming. See more...
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The entry you are marking as a duplicate is:
|Title||The Dark Knight|
|Original entry||When Dent dies, his right arm's position keeps changing between shots.|