Audio problem: When Chris' band is playing in their blood pollution concert, right before the fight, the bass player is pushed onto the drums, and you can see he stops playing, but you can hear all the music stops except for bass, which is the last to stop.
Continuity mistake: At the first concert at the factory Chris' father is standing next to the stage. However, when the camera cuts to show the entire audience, you can see Chris' dad now in the middle of the audience.
