Continuity mistake: The Phantom and Diana take an airplane to escape the boat. Drax's henchmen shoot at it, touch the gas tank and gas starts flowing from it. You can only see gas two times, during close shots.
Continuity mistake: At the end when Billy Zane takes off his mask, the black makeup around his eyes "magically" disappears, even before the eyepatch section gets pulled from his face.
Chosen answer: Two were used. A 1936 Harley Davidson knucklehead, and mid to late 40's Indian Chiefs.
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