Continuity mistake: After April's father tells her about DJ's record, she goes to the frat house to see him. As she is walking up the sidewalk, she is empty handed and no purse is on either shoulder. Then, when she comes in the door she's holding a purse.
Continuity mistake: During the final battle at the end, after Grant finishes his solo part, he is standing well in front of the rest of his team. After DJ does his own last move (just before the big one he does to win it), Grant has moved all the way back and is now in line with rest of his team and not in front of them at all.
Continuity mistake: During the Sunday dinner at DJ's Uncle's house and around the time DJ says "When are you going to teach me to make this fried chicken?" from the front shot his aunt is about to take a bite of food but from the back she is fluffing the napkin in her lap and then back to eating in the next shot from the front.
Continuity mistake: After practicing in the empty pool and just before DJ shows the guys how to make steps fit their natural rhythm, there is a yellow bottle of sports drink beside the guy with the orange headband. And in the next shot there is a blue bottle and a yellow bottle of sports drink beside him.