Revealing mistake: When Batman and Robin are ascending up the side of a building while holding onto a rope, you can see the lines pulling on the bottom of their capes, so that they can give it the effect that Batman and Robin's capes are hanging down in the vertical position. (01:00:00)
KlawsomeContinuity mistake: When the officials are being dehydrated, close ups of the liquid in the dehydrater show the level increasing up to about 75% but far away shots show the level steady at about 20%.
terry sVisible crew/equipment: In the final fight scene on top of the submarine you can see the ripples and shadows on the painted sky backdrop behind the submarine. (01:31:05)
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.
Movie NutContinuity 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.
Movie NutVisible crew/equipment: As the Bat copter is approaching the yacht, in the frame is a crew member, either a member of the yacht's crew...or production crew. He apparently realises he is on camera and ducks down behind a railing.
John M BaranContinuity mistake: Toward the end of the fight scene on the deck, knotted ropes suddenly appear.
Movie NutRevealing mistake: As the camera watches the duel between Batman and Penguin, the wall of the set is painfully obvious, as you can see lines and ripples in the scenery of the sky.
Movie NutContinuity 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.
Movie NutRevealing mistake: After hitting the Riddler and Joker, a thug with the red and white striped cap goes to hit Batman. As he does, Batman starts to turn away from the oncoming punch well before the man's fist is even near him.
Movie NutContinuity 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.
Movie NutContinuity mistake: As Joker uses the dehydrator, the amount of water in the container varies between shots from almost empty to almost full and back.
Movie NutAudio problem: After Guinea Pig 4 disappears, the camera looks at Riddler and Catwoman. You hear Riddler giggling, but he has an astonished look on his face for a second and then giggles.
Movie NutVisible crew/equipment: As the Batboat preps to leave, the rotor wash of the camera chopper is visible playing across the water, and as it takes off, the blades of the chopper are visible as it tries to catch up to the boat.
Movie NutRevealing mistake: As the Batmobile approaches the camera on the pier, the tire tracks from a previous take are visible on the deck boards, and as the Batmobile nears, it follows the tracks precisely.
Movie NutOther mistake: When the shark falls away from the ladder, the hook used to hold it in place is visible.
Movie NutVisible crew/equipment: As the Bat Copter is rolled out of the hangar, the camera vehicle and crew is reflected.
Movie NutVisible crew/equipment: When Batman is running to get rid of the bomb, when he runs past some windows you can briefly see the camera and its stand in the reflection. (00:59:55)
Marcus CaptainSlow BelicchiRevealing mistake: When Robin is trying to get the sub to surface using Bat Depth Charges, the sub is rocking violently. The rack that contains the vials with the Security Council's dust not only sways back and forth, but lies nearly flat several times, and always at impossible angles. This goes against physics, and gravity. The rack should have fallen off the table more than a few times.
Movie NutRevealing mistake: Whenever you see the underwater shots of the sub, and the torpedoes, you can see the sides of the pool where the filming was done.
Movie Nut