Continuity mistake: Jason spits blood onto Joker's chin which changes spot wise and shape wise by the next shot.
Batman: Under the Red Hood (2010)
1 mistake
Directed by: Brandon Vietti
Starring: Bruce Greenwood, John DiMaggio, Neil Patrick Harris, Jensen Ackles
Genres: Action, Animated, Crime, Drama, Mystery, Sci-fi, Thriller
Young Robin: Twenty rounds a second and you're still too slow.