Goofs

The earphone in Kevin's right ear disappears in the next shot when he is interrupted by the Mollycoddle lead singer at 42'57".

The position of Emily's hands on her cello when she stops playing to speak with Kevin the first time.

When Kevin was training and Clay get into the room, Kevin was wearing a pair of earphones. In the next cut he was wearing only one piece and in the next cut the earphone disappears, all of this without stop playing drums.

At 57mins as hunter adjusts his collar you can see it has small studs on it. In the very next shot, however, as he turns around he is now wearing a collar with huge spikes instead.

When the band is auditioning a bassist, who ends up not being able to play, the music used is Metallica's "For Whom The Bell Tolls", the opening melody of which is played by late bassist Cliff Burton.

Kevin plays drums on a massive set up, there are two kick drums, and yet when the camera shows his feet, he is using a double pedal on one kick drum, which is pointless as he would be playing two single pedals, being that there are two kick drums.

At 1h26m during the battle of the band's performance, a camera can be seen in the bottom left of the frame.