Revealing mistake: When Cruz, Miklo, and Paco take out the customer's car cruising they pass a Olds Cutlass and Chrysler Cordoba on the street that are newer than 1972. (00:11:00)
Carlos: Market is there. Cocaine is America's cup of coffee.
Big Al: I'm about finished waiting for my money, punk.
Popeye: Hey, why don't you take it out in trade? You always liked Tinkerbell. She's fine.
Big Al: You bet cash, you lose cash and you pay cash. Pimp-mobile!
Popeye: Hey, Cinderella, go find yourself a fella, you're on the clock bitch and midnight is coming, you got the wrong man.
Continuity mistake: Spider's pose changes between shots when he falls down the hill and dies.
Old Con: For cheap times! For cheap times!
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.
Visible crew/equipment: In the prison scene where Popeye is showing Miklo around the part where it's said "Beto Suige lol" the boom mic shows as soon as Beto gets up. (00:45:13)
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.