Continuity: In the scene where Bruce is fighting in the restaurant with the other chinese guys, his shirt is stained with dirt in the back. The amount of dirt on his shirt changes from shot to shot.

Factual error: During the scene where Bruce leaves his girlfriend's parents home, it's raining. He leaves in a huff on his motorcycle and you can clearly hear the sound of screeching rubber on the pavement. Peeling out and making this sound would not have been possible in a rainstorm.