Other mistake: There's a scene where we see Zamira and the kid shooting Danny Trejo right in his chest. Later on, when taken to the presence of Bucho, they pull Trejo's vest wide open and he has nothing but blood stains on him.
Other mistake: During the bar gunfight, Banderas shoots the ventilator that falls down on the bad guy. In the next shot, you see that the ventilator is still rotating. The ventilator should be disconnected after falling to the floor, since the wire isn't that long.
Other mistake: In the bar fight/shoot out Antonio Banderas shoots a fan onto one of the gunmen and we see the man fall down face first into the camera with the fan on the back of his head, Antonio walks around the bar and guy is suddenly laying on his back and turned completely around with fan on his chest.
Other mistake: How does Banderas shoot the bad guys falling back off the building? It's impossible from the angle he's at.
Answer: Tito Larriva as Tavo says (in reference to Steve Buscemi) that "This guy smells like shit." The name of the song being played is "Manifold de Amour" by Latin Playboys.