When Jerry confronts the men who stole his rental car, one of the men is wearing Jerry's purple sunglasses. Jerry gets irritated and takes them from him. However, before Jerry takes them back, there is a brief shot showing Jerry already wearing them.
The position of the door stop in the bathroom at the mall.
The shot of the underside of the aircraft landing in Mexico has four wheels per main gear. Jerry is then seen deplaning from a Boeing 727, which only has two wheels per main gear.
Blood disappears from Sam's face.
When Jerry takes the pistol back from the man who stole the el Camino, you can see the rag the pistol's wrapped in fall to the ground when he puts the pistol in his pants pocket. The next cut shows the rag hanging from Jerry's pocket.
Mexico does not issue vanity license plates in real life. All license plates in Mexico consist of three or four numbers and three letters.
The film opens with a car crash at an intersection clearly labeled "Laurel Terrace", but when Samantha explains the story later in the film she says that it was by "Laurel Canyon and Ventura". However, she wasn't present at the accident, which was five years earlier, and it's understandable that she'd misremember it as the major street Laurel Canyon instead of the more obscure Laurel Terrace. Further, even if she knew it was Laurel Terrace, she may have used the nearest major street for clarity.
After saving Samantha's life, Winston puts the latex gloves he used into the trash, enabling police to lift his fingerprints off them.
Winston does take his gloves off, however he does not place them into the trash can. Winston only takes them off in front of the trash can.
A bullet fired nearly vertically usually falls back to earth at terminal velocity, which is much lower than its muzzle velocity. Despite this, people can still be injured or killed by bullets falling at this speed. If a bullet is fired at other angles, it maintains its angular ballistic trajectory and is far less likely to engage in tumbling motion; it therefore travels at speeds much higher than a bullet in free fall.
Leroy's body can be seen breathing after Jerry shoots him dead.
The first time Jerry tucks his revolver beneath the dash of the El Camino (while Beck is relieving himself outside the bar), the orientation of the gun would indicate that the right side of the firearm is being shown to the audience; however, the cylinder release is clearly visible, indicating that this is actually the left side of the gun and the shot has been reversed. (Also note that he uses his right hand to stow the revolver but the orientation of the hand, especially the thumb, would indicate a left hand. This is further evidence of a flopped shot.)
When the El Camino has a flat tire, Jerry is seen retrieving the spare tire from underneath the truck bed. In real life, the El Camino has the spare tire and jack stowed behind the passenger seat area, not under the truck bed (the area behind the rear axle and bumper on a GM A-body utility model is the location of the fuel tank).
In the opening scene, the stop light is clearly red, yet cars are seen going through the light in all lanes.
What happened to Ted and Joe (Mexican pawnbroker) Their shop door still locked.
In the Las Vegas hotel room Samantha is lying on the bed when' Leroy' comes in from the other room leans over her, there's a click and she's handcuffed to the bed. Where did the handcuffs come from? The following morning 'Leroy' undoes the handcuffs and goes to the bathroom. Up to then Samantha has been dressed in a jacket and blouse. She gets up to go to the bathroom and she's wearing a long white nightdress.
When Winston shoots the well-dressed black man in the hotel room the gun he is using does not have a suppressor on it. Yet the weapon is making the sound of a suppressed pistol. When he shoots the final shot for the kill you see this perfectly.
When driving in the new style Volkswagen Beetle, the engine sound is that of an original, air cooled, rear engine Volkswagen Beetle.
When Jerry initially retrieves his revolver from his luggage before going into the bar to find Beck, he opens the cylinder and a couple of cartridges fall out. In the process of reloading, he spins the cylinder and several clicks are audible. An open cylinder on this type of firearm would spin freely and would not click. (The clicks might be heard as part of the lockup mechanism if the cylinder was spun while closed.)
When Jerry and Sam are driving from the airport to the Mexican hotel towards the end of the film, parts of a camera are reflected in the car window.
Toluca City is a large industrial-urban city, 30 minutes by car from Mexico City. It is not an old rural town. Because of its closeness to Mexico City, no airline flies between the two cities.
When Leroy and Samantha leave the mall they drive on and on through the desert and end up in downtown Las Vegas at the Plaza Hotel. Maybe they just wanted to do a lot of driving, but in actuality the mall is on Las Vegas Blvd about 15 minutes driving on the strip to get up to the Plaza Hotel.