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 Rumors - chronological order
Starring: Alastair Duncan, Rino Romano, Evan Sabara
Character mistake: Artie says he'll recite pi to 100 decimal places. After the first few numbers, it skips to him finishing up by saying "46375." The last 5 digits would be "70679." In fact, the sequence "46375" doesn't occur until the 95,517th position.
The Joker: Sorry Batman, but Joker always laughs last.