Continuity: When the bad guys try and kill Antonio Banderas in the bookstore, after killing about the third bad guy, you can clearly see his gun lock on an empty chamber, but there's a cut and he immediately carries on shooting.

Visible crew/equipment: In the shot where Salma Hayek is tossing the bullet she has just removed from Antonio Bandaras's shoulder, you can see the reflection of Robert Rodriguez holding the film camera on the metal dish.

Continuity: When El Mariachi breaks the guy's neck at the bar he stands up and his knee caps are full of white dust, then he finishes writing a note to Bucho his knee caps are clean.

Continuity: During the rooftop shootout Banderas reloads his gun (right hand one), than he takes another gun (the one in his belt) with the left hand. After a cut, Banderas reloads his right handed gun again and the left handed gun disappears.

Continuity: When Antonio Banderas and his girlfriend are escaping during one of their big gunfights Antonio jumps off of a building at least three times his height and is covered in dust. When he gets up he is magically clean and unharmed after this fatal drop.

Continuity: The gun that the bookie fires at Banderas in the bar has a silencer on it, but when he fires the gun at him, it sounds like normal gunfire.