Continuity mistake: Towards the end, when Wade Robson introduces Lil Kim everyone starts to cheer. While everyone is cheering they show a shot of El's mother and grandmother cheering. This is the very same shot used when the "Pump it Up" song starts, every movement they make is identical, look at the grandmother in both shots.
Other mistake: On the first day of the Big Bounce, during the dancing, a white towel-like object is dropped on the floor and in the next shot it is gone.
Continuity mistake: After the first battle with the girls in the crew, they are waiting to see who won and Toya unzips her jacket twice.
Continuity mistake: When Wade's crew is battling against the all girls crew, one of the girls throws an orange/brown cloth back at Wade's crew and it falls to the floor. One or two shots later it disappears.
Continuity mistake: In the scene where Lil' Kim is talking to the two crews, her hair style at her forehead is different to when she goes back and sits down and the competition continues.
Other mistake: During the Second Day of the Big Bounce, as Lil' Kim is announcing that there are no rules and the music will run for five minutes and she will yell stop, she actually never yells stop at the end of the five minutes.