Revealing mistake: There's a scene where Dana's building is falling apart and stones and stuff are falling to the street below. One of the huge boulders bounces off a wooden police barricade in the bottom left hand corner of the screen, and then off a person. (01:29:14)
Character mistake: When Ray and Winston are driving across the Brooklyn Bridge around midnight in the Ectomobile, Ray quotes a verse of scripture claiming to be "Revelation 7:12". What he quotes is actually Revelation 6:12. (01:03:38)
Continuity mistake: After the library scene, while the three scientists are walking and talking, a woman in a striped blue and yellow sweater passes by Egon, but disappears in the immediate next angle. (00:21:35)
Continuity mistake: At about the middle of the film, when the Ghostbusters are rising to fame and are appearing on the front of newspapers and magazines, the photograph on the front of the New York Post is taken from the end of the film, just before the four of them cross the streams from their proton packs. (00:39:37)
Continuity mistake: During the flying eggs scene, the lettuce on the right changes shape and position between angles. (00:19:20)
Continuity mistake: The Stay Puft Marshmallow Man has a red bow tie on as he walks down the streets of New York, which disappears in one shot as the Ghostbusters fire at him. (01:30:45 - 01:32:05)
Revealing mistake: Towards the end, when the ground is shaking and breaking up, a police car falls halfway into a hole in the road. When the smoke clears a little you can clearly see two white poles, one on either side of the back left wheel, holding the car in place. (01:21:04)
Continuity mistake: When the eggs pop out of her bag and start cooking on the counter, they're in different positions depending on whether it's a close up or wide shot. (00:18:55)
Revealing mistake: In the ballroom scene, when Slimer is flying around the chandelier, he disappears for a few frames when he reaches the far side. [This animation is mentioned in the DVD commentary. The film makers were generally unhappy with the entire animation and the fact that the representation of the apparition did not resemble those previous and that the movement was very unconvincing.] (00:35:05)
Continuity mistake: When Winston gets hired, Venkman and Stantz have just come back from a job. They're covered in slime and Venkman's smoking. Ray gives Winston an armful of traps. We then cut to Venkman chatting to Dana after a rehearsal, so we assume it's later, maybe even a different day. After that scene though, we then cut back to Stantz showing Winston (wearing the same shirt) what to do with the traps, and Venkman talking to the guy from the EPA. Venkman's got the same slime pattern on his shoulder, and is still smoking. Looks like the Dana/Venkman scene was in the wrong place. (00:42:00)
Continuity mistake: In the scene when the Ghostbusters have a police escort, as they arrive at the condo building, in the wider angle of the police convoy with Ecto-1 approaching the building, the lights appear to be off, only to be on again in the next shot.
Revealing mistake: In the earthquake scene where the road is cracked, you can see the cloth on the side of one of the cracks flapping in the wind. (01:20:35)
Factual error: At the very end of the movie, Ray is telling Louis about the Tunguska Blast of 1909, but the famous blast actually occurred in 1908. Given his oft-demonstrated levels of knowledge, he'd know better. (01:37:38)
Revealing mistake: In almost all the aerial shots of Dana's apartment block, the traffic on the ground is stationary (NB - this is explained in the SFX documentary on the Special Edition DVD/video - matte paintings were used for those shots)
Revealing mistake: When the police car falls into the hole, if you watch the ground that's rising up in front of it, when it finally comes to a stop, you can see how light it is because it bounces, and you can tell that the pieces of the pavement are moved by hydraulics. (01:20:45)
Revealing mistake: Near the end of the film when the Ghostbusters take cover in a small corner and come up with the "cross the streams" plan, look closely at Peter's proton pack, you can see that it is a foam "stunt" pack as there is a small sticking out part that keeps squashing against the wall behind him. (01:32:25)
Revealing mistake: When the eggs are popping out onto the counter in Dana's apartment, if you look closely you can see the the levers in the egg carton flipping each one out. (00:19:30)
Continuity mistake: When the terror dog ruins Louis' house party, a man cowers behind a dining chair. In the shot immediately following his closeup, the chair has magically sprouted armrests. (00:59:35)
Factual error: When Mr. Peck comes to the Ghostbusters' building with the police and Con Ed, the NYPD captain is wearing a light blue shirt. All NYPD officers Lieutenant and above wear white shirts. Only patrolmen and sergeants wore the light blue shirt. (01:05:10)
Continuity mistake: When Venkman is going into Dana's apartment for the first time, he plays a few notes on the piano. He does not fully open the piano key cover (just enough to play the notes). The next shot (or a few later) you can see the piano key cover completely off. (00:24:25)
