Directed by: M. Night Shyamalan
Starring: Dev Patel, Nicola Peltz, Jackson Rathbone, Noah Ringer
Audio problem: At the beginning, when Zuko says "Look, Uncle!", his mouth doesn't move.
Suggested correction: Zuko is facing away from the camera as he says, "Uncle, look!" But you can actually see his chin moving as he says the line, if you look closely.
Continuity mistake: During the scenes at the Northern Water Tribe, there is a cut in the middle of Aang's lower lip that occasionally will disappear and reappear.
Question: Was there any reason given as to why many of the names (Aang, Sokka, Iroh, etc.) and the term "Agni-Kai" are pronounced differently than in the television series?
Answer: The TV show Americanized the pronunciations whereas the movie said them correctly.
The show is American, so with original characters you're allowed to say them how you want.