Continuity mistake: When Rico runs to the basketball court to spill about the Big Bounce, he begins to sit down on the court. After it cuts Rico starts to sit down again for the second time.
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: 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: After Oscar does his moves, a few guys do flips in the middle of the dance floor and Oscar disappears and reappears between 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.
Continuity mistake: When David is shooting free throws (before learning about the big bounce) the ball doesn't bounce back on the second last shot it's a chest pass.
Continuity mistake: During the last battle, when the b-boy on the Lil Saints team is circling around the floor on his hands, his shirt comes untucked and tucked a few times.
Continuity mistake: Just slightly after the part where David runs, does a jump and the crew catches him, then bounces onto his feet, a hat comes off, but then it instantly vanishes. (01:25:50)
Answer: When Dave's crew went to the finals they wanted to bring the best dancers in their group, so they apparently decided that the two girls happened to be the least strong dancing wise on his team.