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.
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.