Goofs

When Frank and Jane are trying to crack the code to stop the bomb going off, Frank's jacket is eaten by the machinery. In the following scene when he is up on the stage making a speech, he is wearing his jacket.

When the doghouse is dragged behind the tank, the location of where the chain is attached to the doghouse changes between shots.

In the scene where Nordberg is trapped under the car, you see a few shots of what he is about to hit. We see him about to hit a traffic cone and tumbleweed but instead he hits a cactus with the traffic cone and tumbleweed further ahead in the road.

Next to the erotic store, Hector Savage's Ford van changes years.

When Jane sucks Frank's finger, she puts her hand on his. Her hand disappears in the next shot, then reappears in the following one.

Because of the nature of the revolver used by Hector Savage, putting a silencer on it will have little effect. A silencer is normally meant to suppress the gases expelled down the barrel while firing, but in revolvers there is still has a gap between the cylinder and the barrel where the gases can escape.

The picture of the Titanic hanging among other "big failures" at the Loser Bar is actually the Lusitania, a British liner sunk by a German U-boat during WWI: note the propellers (four instead of three), the different shape of the stern and the fact that, in the picture, it is daytime; although most of these aspects can only be told in a frozen frame.

The police forensics expert says that his team have discovered a dinosaur footprint outside the institute that he describes as a major find from the Paleolithic Era. The Paleolithic Era is the Old Stone Age, which took place about sixty million years after the extinction of the dinosaurs.

At the party, Quentin Hapsburg says to Frank, "Que será, será. You do speak French, don't you?" This phrase is Spanish or Italian, depending on the spelling, but definitely not French. Obviously meant as a joke.

Anabell Brumford is introduced as Washington D.C.'s police commissioner, with the rank of Captain. The Metropolitan Police Department of the District of Columbia (Washington D.C.'s police force) doesn't have a commissioner and is headed by a Chief of Police. Captain is usually in the middle of the rank structure of American police departments, including Washington D.C.'s.

In the opening scene, Captain Brumford mentions that Frank's rank is Lieutenant. When Frank begins his opening narration, he mentions his rank as Sergeant. This is not an error but a running joke in the series that comes from the original Police Squad! TV show, where Drebin would be referred to as several different ranks through an episode of even in the same sentence. Frank's full, official title is "Sergeant Frank Drebin, Detective Lieutenant Police Squad," which is a fictional amalgamation of three different ranks of police officer.

During the shootout on the roof, the number of shots exchanged by Frank and the gunman far exceeds the capacity of either of their pistols. This is a gag in all Police Squad episodes and Naked Gun movies - an exaggerated capacity to the weapons used.

Obvious body double for Jane when Frank and Savage pull back the shower curtain and look at her. The double's arms are thinner.

Right after Nordberg blows up the door to the roof access at the hotel, Frank enters and leaps over the railing behind a computer panel. When the stuntman lands, his shadow stays in the same place while Leslie Nielsen comes out.

When Savage is getting ready to kill Jane in the shower, he places a silencer on a gun that a silencer wouldn't work on.

When Ed is looking through Jane's sketch book, he acts shocked at how the sketch artist drew Jane in exotic outfits, then he flips the pages. The drawings are facing the camera, and there is obviously nothing drawn on the page facing Ed.

The location of where this film is based is Washington DC but at the 32-minute mark it shows a palm tree in the background when they are approaching the Hector Savage hideout house.

When Jane and Frank are making love, the borrowed shot of the torpedo launching underwater was shot with an anamorphic lens and not properly desqueezed for the film's 1.85:1 aspect ratio.

At the Blue Note bar Frank orders a Black Russian, but receives something that appears to be more a sweet tropical type of drink.

After Zsa Zsa Gabor slaps the police light, she begins speaking as she turns away towards her car, but her mouth isn't moving.

In the mariachi scene, Ed's guitarrone can be heard before he starts to play it.

When 'George Bush' starts his speech at the event with the Mariachis, his first sentence "I am pleased and honored to be with you tonight" doesn't match his lip movement during the end of the first shot.

On the Blu-ray it is noticeable in the bar scene, when people are walking around, the sound of the footsteps is extremely exaggerated and clearly Foley work. The flooring is also clearly carpeted, making the exaggerated noises even more inappropriate.

In The Blue Note bar, the camera's shadow passes over the cigarette/prescription tray lady.

Crew member visible in the lower left corner operating "Hector Savage" when he is swelling up with the water.

Whilst Nordberg is being dragged under the front of Frank's car and is hitting objects left in the road, the car drives past the camera and you can clearly see that Nordberg has two animatronic legs attached to the front of the vehicle.

When the angry dog is chasing Frank along the warehouse roof, shadows of crew members are visible in the lower right-hand corner of the screen.

When Dr. Meinheimer/Earl Hacker's wheelchair malfunctions and flies across the floor, the guide/drag wire can be seen running between the door and the camera position.

Frank is hesitant to accept Jane's offer of a night together because he and Nordberg were planning to make a nut loaf. However, Frank has just learned Nordberg is stuck in Detroit, and would have had to cancel any plans with him regardless.

At the end of of the first Naked Gun movie Frank is promoted to Captain by the mayor, however in this film that promotion is disregarded for the continuation of the in-joke involving Frank being both a Lieutenant and a Sergeant.

The Sergeant Frank Drebin gag can also be interpreted as Drebin's parents naming him Sergeant as a first name with Frank as a middle name. This would play out since he says his name is Sergeant Frank Drebin, and then he gives his rank as Lieutenant.

Zsa Zsa Gabor looks at the camera while she slaps the police car.

At the end of the film Frank claims there was nothing he loved more than firing his 44 magnum. Frank's gun is a Colt Detective Special chambered in 38 special. He has never been shown using a 44 magnum.