# Continuity: During the Defense Against the Darks classroom scene, the writing on Professor Moody's chalkboard of his name and "3 Unforgivable Curses" changes continuously.

# Continuity: During the Harry's bathtub scene, after he has emerged from the water from listening to the egg and is sitting with Mrytle his hair changes repeatedly between shots, going from completely smooth to having a bit of hair sticking straight out on his right side.

# Audio/visual unsynchronized: When Harry reads Sirius' letter to him, the shot of the letter reveals that Sirius's last words in it are "By the way, the bird bites," but in the voice-over Sirius says "P.S. The bird bites."

Continuity: SPOILER: When Harry is battling Voldemort and their wands become magically connected, Harry grabs his wand with two hands. In the next, he's holding his wand with one hand again.