Visible crew/equipment: About half way through the movie, Sara and Derek are at Sara's apartment and she tells him that her father has a good stereo system. When she turns it on, you can see the reflection of the pole that holds the boom mic in a framed picture of a woman's face just to the upper right of her head. (01:23:20)
Continuity mistake: In the beginning of the scene when Sara and Chenille are walking to the club on the sidewalk, there are two people behind them. When Chenille hands Sara her fake i.d, Sara stops and the people try to walk around them. Yet, two shots after that one, the same two people are far behind them.
Continuity mistake: When Sara first goes to the club you see many people street dancing and a lot of close-ups on other people in the club. Well at the end of the movie when Derek and Sara are dancing you can see the street dancers and all of people from the club earlier wearing the exact same things that they wore in the beginning.
Factual error: It's established that the kids live in and go to school on the South Side (south of the Loop), and much is made of the fact that Malakai has nothing but his "respect" within his neighbourhood. At the movie's end, where Malakai wants Derek to accompany him on the robbery/murder, he tells Derek, "Meet me at 47th street, under the El." Yet when Derek runs off and jumps on the train to go meet Sara, we see him getting on a Brown Line train - those trains can only be found on the North side, miles and miles away from 47th street. In addition, his train is shown heading SOUTH toward the Loop, which means in order to be going that direction on that train he'd have rode on the train for about an hour, past the Loop entirely, then gotten off and turned back around toward the Loop again.
Revealing mistake: Near the end of the movie when Sara is auditioning for the second time she does a flip during her contemporary piece. If you look carefully you can see hair which is not in a bun, but in a pony tail, as Sara has her hair in a bun. This may be Julia Stiles double.
Continuity mistake: When Chenille and Sara are in the clinic with the baby and they argue, Sara leaves and Chenille is looking at her. There is a close-up of Sara about to walk out the door and in the background you can see Chenille staring off into space the other way, and then a split second later there is a close-up of Chenille and now she is looking at Sara again.
Continuity mistake: When Sara first goes to school, she has to go through a security check. When she gives her bag to the security guard to be checked, the man opens all of the zips on the bag. The bag is then handed back to Sara, but when she puts the bag on her back, the zips are done up without her having time to do them up.
Continuity mistake: At the clinic, when Chenille is arguing with the woman, there's a man behind Sarah, with his arm around a boy, while another boy is standing in the corner. In the next shot, the boy in the corner is the one being held by the man, and the other boy has moved to the other side of the table next to them. (01:19:20)