Continuity mistake: Spider's pose changes between shots when he falls down the hill and dies.
Continuity mistake: During most of the movie, Miklo has these incredibly blue contacts on. However, in some scenes (also closeups!) his eyes are the actor's natural grayish-green color.
Continuity mistake: During Paco's undercover drug bust, the PCP dealer Carmen is smoking a cigar. She looks down before taking the cigar out of her mouth. In the next shot, she is still looking up.
Continuity mistake: During the infamous "chon chon" scene, Miklo blocks Popeye's attack with a mattress. When they fall over, the mattress disappears.
Continuity mistake: At the end of the film when Paco realises that he is the reason why Cruz became an addict and Miklos went to jail, Cruz is looking at him but has his face turned away in the next shot.
Answer: Extended part.