Corrected entry: After Franky Flowers gets shot and Catherine Zeta is talking to Obregon he tells him that it was an informant on his side that ratted out his cartel. He denies this. But when Franky Flowers gets shot by the sniper the sniper calls him a damn informant (in Spanish) so he must have know he was an informant because the sniper is sitting right behind Obregon when he is talking to Catherine Zeta.
Corrected entry: When the Douglas couple is driving home, they're talking about boredom. When they arrive, she drives away again. Something silly happens here: first she drives backwards and turns around the corner that way, in the very next shot that follows you see her driving forward and she makes the same corner again. (01:15:30)
Correction: Though this does LOOK like a mistake, it's actually not. It takes place about halfway through the movie, and up to that point, and beyond, that type of jumpy, double-view editing had been used throughout the film. It's true that it's a rather bizarre use of it, but it's not a mistake.
Correction: Obregon knows full well that the informant was on his side (which is why he has him killed), he just doesn't want to admit it.