Goofs

At the end of the movie, Dooley fires six shots at a car from a five shot gun.

When Lazarus' car starts chasing the armored truck near the end of the movie, the front of the car is alternately damaged/intact between shots.

When Frank finally gets his motorcycle started, he is right next to a white 61 Ford Falcon. The view changes and the Falcon can now be seen 3-4 car lengths ahead of him.

At the end of the movie during the semi truck chase, the truck's grill is alternately damaged/intact between shots.

When Frank and Norman are hiding in the sex shop and looking for a way to escape, they coerce 2 patrons, a man in leather and a transvestite into the back and swap clothes with them. Frank (John Candy) comes back out in the drag outfit with inexplicably full makeup.

The gun claimed to be a .50 caliber, is actually a .454 Casull.

50 caliber handguns are legal in all 50 US states.

When Frank Dooley arrives at the TV shop, he would have called for backup first before entering the property. Dooley would not have entered or approached without another officer present. He also would not have drawn his weapon first without probable cause of immediate danger to himself or someone else.

At the end of the movie, when the bad guy's car rolls over, there is one man in the driver's seat in an orange outfit, obviously a stuntman, instead of the two men in black suits.

When the car rolls over at the end of the movie, the roll cage added to the car for the safety of the stunt men can be seen.

As Bruno chases Norman and Frank out of the fitness center (after they trap and interrogate him while he's weightlifting), he runs through the lobby twice.

While Dooley is riding his motorcycle on the bridge, he drops the cycle because of engine problems. Later you can clearly see a smoke canister on the bottom of the cycle.

As Rizzo, Mel and Carlino pursue the armored truck driven by Captain O'Connell, the view through the windscreen of what is supposed to be a light beige 1977 Chevy Caprice shows a black hood and a Cadillac hood ornament.

In the wide shot of Rizzo and Mel's 1977 Chevy Caprice, just before it is hit by the armored truck driven by Captain O'Connell, the camera used for the close-up of the rocker panel moments before can be seen on the ground next to the car with a wire attached. It is quickly knocked out of the frame on impact.

After Frank reveals his .50 cal to the truck driver, the next scene shows the armored truck going through an intersection with crew members on the roof of the building.

Just before the car crashes into the fiery truck you can see a crew member in front of the truck on the right side of the screen crouched down.

It would have been easy enough to clear Frank Dooley of the burglary. Sergeant Rizzo & Mel Nedler didn't have gloves so their fingerprints would have been all over the store but there would been no trace whatsoever of Dooley's.

After the semi-truck is blown up by the rocket launcher, Norman gets out of the armored car in despair and says "Frank". There's no way Norman would have known that Frank was in the semi-truck. For all he knew, an out of control semi-truck inadvertently saved them.

At [1:22:01]The police captain sees Frank Dooley give his pistol to the cowboy, so he tells him, "I hope you have a permit for that firearm, Dooley". Just the fact that Dooley handed it off to someone else means he his now unarmed and doesn't need a permit for anything. He should have said it to the cowboy, but even then, having a permit would do no good because Dooley told the cowboy earlier that California is NOT one of the two states where it's legal.