Lynnl

Continuity mistake: When the Bellas just got told that they are not allowed to compete any more they walk outside and Beca gets a call. When the camera is zoomed in on her you see her calling and moving a lot. When the camera is focusing on the other Bellas she is standing completely still in the background. When the camera is back on Beca she is moving again. (00:12:50)

Lynnl

Continuity mistake: In the scene where all the groups are together and having a party, Donald changes position several times. First he is standing next to Bumper and in the next shot he is dancing, the shot after he is again standing next to Bumper.

Lynnl

Plot hole: When they find captain Nemo's journal the journal is completely intact and the pages are made of paper. But the journal is very old, and the island sinks every 70 years, so the journal should not have looked that good, and the pages must be gone by now or at least not that readable. (00:47:30)

Lynnl