Continuity mistake: At the beginning, when Rumor attacks Croc's men, he ties them up and wraps up their mouths (gags them). But in the next shot, none of their mouths are wrapped up.
The Batman (2004)
1 continuity mistake in season 4
Starring: Alastair Duncan, Rino Romano, Evan Sabara
Character mistake: In s01e08, "Q and A", Yelena moves her bishop to B6. The announcer says that's going to win it (the game gets interrupted at this point). However, that move does not put the computer (her opponent) into checkmate, it doesn't even put it into check. Her bishop is on a dark square and the computer's king is on a white square.
Batman: We both know you put yourself on ice. I'm here to bring on the thaw.