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Continuity mistake: Before the final torpedo, the projector lenses are out. After the explosion, the Batboat is gone, and the projector is again concealed. Batman didn't have time to put the cover on.

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Continuity mistake: As the Batcopter approaches the yacht, switching between the aerial view and inside the cabin, Batman is seen both standing outside ready to descend the ladder, and piloting. (00:06:25)

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Continuity mistake: Toward the end of the fight scene on the deck, knotted ropes suddenly appear.

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Continuity mistake: After Robin gets rid of a goon, Joker comes toward him. After Joker misses with a swing, Robin pops him and he starts to go overboard. A second later he goes over again.

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Continuity mistake: When boarding the sub, Robin ties the Batboat off to keep it in place, but it disappears when the fight breaks out. Also, they come aboard well aft of the forward hatch, but a moment later, they're just a couple feet away from it, walking towards the Conning tower.

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Continuity mistake: As Joker uses the dehydrator, the amount of water in the container varies between shots from almost empty to almost full and back.

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Continuity mistake: As the Dynamic Duo near the buoy, Robin is seen for a moment wearing headphones, when the rest of the time in the Batboat, he's not wearing them.

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Continuity mistake: When the Batboat first takes off, the flashing red emergency light is on. In the close-ups, it is off.

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Continuity mistake: At the airport, the Batcopter is ready to fly. As it ascends, look at the front of the bottom side. The only thing there is a standard search light. Later, when over the yacht, Batman drops the Bat-ladder, which appears to be attached to the bottom front next to the light, but wasn't there on take-off. The class of chopper used didn't have room for a hidden compartment.

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Continuity mistake: In the beginning, after Batman and Robin are in the Batcopter, in a close-up shot, you see Robin with the Bat-camera next to him, when there wasn't anything in the cockpit with them when they took off. After he raises it to get a reading and take pictures, a wide angle shot shows them in the chopper with no camera, and then another close-up, and the camera's back.

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