Continuity mistake: There's a scene where Spengler talking to Ray about Iran running Vigo The Carpathian through the Occult Reference Net. We first see the computer screen from the side, with Spengler and Ray looking at it, and in the next screen we see the screen head on. The layout of text on the screen, the books piled to the right and the shadow on the wall to the left are all different between scenes. The close-up of the screen is obviously a different set-up, close but not right.
Continuity mistake: When Vigo throws the streams from the proton packs back onto the Ghostbusters, there is a wide shot of Egon getting thrown way over to the right. However, when they do a closer shot, he is way over to the left, closer to the other three Ghostbusters. (01:33:50)
Continuity mistake: When Janusz is knocked out on the floor, his position keeps changing all the time depending on the angle.
Continuity mistake: In the abandoned railway station scene, when the heads on stakes appear, you can see in the first shot, Winston is wearing his hardhat after that there is a split-second shot and it disappears. In the very next shot it reappears. (00:59:51)
Visible crew/equipment: When the chairs are flying through the air in the courtroom, if you look closely, you can see the string pulling one of them. (00:34:30)
Revealing mistake: When Ray, Winston and Egon are underground looking for the river of ooze, there is a scene where they break down a small wall of rocks. Ray then sits on one of the rocks and it bends under him - it's rubber or foam. (01:01:50)
Revealing mistake: When they gather around to watch what happens when you put the slime in the toaster, you can see when the toaster starts popping that it has little pneumatic pistons attached to the bottom, making it jump. When the toaster gets picked up off the table you can view its power cord which is entirely too big - more likely air lines. (00:41:15)
Continuity mistake: Near the end, the Ghostbusters make the Statue of Liberty smash the window on the roof of the art museum before abseiling in. The window gets completely destroyed, but just after Vigo says 'Now we become one' we see the window again and it appears less damaged than before. (01:35:50)
Revealing mistake: During the courtroom scene, one of the ghosts grabs the prosecutor and she is hanging upside down. Her dress comes down a little, but when she is about to fly through the door you can see part of the dress is pinned to her panty hose to stop the dress from falling off. (00:33:30)
Continuity mistake: The floating toys on the stool by Dana's tub disappear when the water becomes pink goo. (00:45:50)
Revealing mistake: When Venkman is shooting at the ghost in the courtroom, if you look closely at the pillar his proton stream hits, you can see the area that is supposed to explode before it actually does. (00:35:25)
Continuity mistake: In the end when Tully is shooting from the proton pack against the building that is covered in "slime" you see a wide shot of the building but you can't see Tully shooting anywhere. (01:37:30)
Continuity mistake: When the doctors are testing the baby, the stethoscope to his right disappears on the back shots. (00:16:50)
Continuity mistake: Before Dana is trapped by the rubber hose, the white tube it comes out of is on her left several meters away. A split second later, the angle changes and without her having moved, the white tube is by her right side a couple inches away. (01:33:00)
Continuity mistake: In the scene where the Ghostbusters arrive at the museum, and Egon tells Peter what he's found about Vigo, while speaking to each other Peter gets a bag and hangs it around his neck. In the shot where you only see Peter's back you can easily see the strap hanging straight down. But in the shot where Peter's face is visible, he's holding up the strap with his hand quite high. Cutting back to Peter's back the strap is hanging straight down again. (00:50:20)
Continuity mistake: When the Ghostbusters are getting up after being paralyzed by Vigo, you can see Ray in the background standing almost straight up, then there is a close shot of him still struggling to get onto his feet. (01:36:25)
Revealing mistake: When Vigo drops the baby in the end of the movie, you can see it is a doll. (01:36:20)
Continuity mistake: When the judge tells the men to stand up, the position of the books in front of them on the table changes position between shots. (00:31:40)
Continuity mistake: When the five men are inside the statue, the light on the background is green. Before they smash the museum there's a huge pink cloud that colours the statue pink on the wide angle. However in the close-up of the men the light is green as before. (01:31:35)
Continuity mistake: When Dana and Oscar are at Venkman's place right after the scene where the bathtub attacks them, there is a slight mistake. Dana is shown from her left side, and she is holding Oscar. Oscar turns his head towards the camera, and almost immediately the view changes, and Dana is shown from her right side. Only thing wrong is that Oscar is still looking at the camera without ever turning his head. (00:46:15)
Suggested correction: This would need more clarification. I couldn't see any string in the mentioned sequences - and for the record, I don't think strings were used, you can easily find interviews with the production team that mention the different trick at work here (they quite literally 'shot' the chairs up in the air).
Sammo ★