In the museum scene of batman, when they are vandalizing the paintings. one of the goons, puts handprints all over a painting, then in a following shot, the painting is in the background with no handprints, then in a scene following that, the handprints are back
this one goes kinda along with the mona lisa comment in the fact that the paintings remained vandalized. i just watched that scene like fourteen times.
This slip-up is correct...I just watched the scene to verify. The guy puts hand prints all over the painting and a second later in the very next shot it shows the same painting without the hand prints as the Joker knocks over the statue. I'll upload a photo of it.