Continuity mistake: In the gym before the lady says "why do we have to turn around" Roxanne is facing the front and then turns and then when the man says "if we please" Roxanne is turning around again.
Plot hole: After the tyre, with Higgins in it, bounces on top of the cop car you can't see anyone in the back. When the tyre is stopped and they open the back of the cop car, Braden is inside. They didn't have time to pick up Braden before stopping the tyre. (00:47:00 - 00:48:10)