The 1984 action comedy Top Secret! contains an odd sequence set in a Swedish bookstore. Val Kilmer, Lucy Gutteridge, and Peter Cushing acted the entire scene backward, and the filmmakers then reversed this performance to produce a dreamlike atmosphere in which impossible things happen.

The scene required 17 takes and four dogs, co-director Jim Abrahams told ScreenCrush. “Each dog stopped being hungry.”

In 1931, 5-year-old Mel Brooks saw Frankenstein and refused open his window on a summer night. His mother talked to him:

Let’s say you are right. That Frankenstein wants to come here and kill you and eat you. But let’s look at all the trouble he’s going to have to get to Brooklyn. First of all, he lives in Transylvania. That’s somewhere in Romania. That’s in Europe. And that’s a long, long ways away. So even if he decides to come here, he has to get a bus or a train or hitchhike to somewhere he can get a boat to go to America. Believe me, nobody is going to pick him up. So let’s say he’s lucky enough to find a boat that would take him here. Okay, so he is here in New York City, but he really doesn’t know how the subways work. When he asks people they just run away! Finally, let’s say he figures out it’s not the IRT, it’s the BMT and he gets to Brooklyn. Then he’s got to figure out how to get to 365 South Third Street. Okay, it’s going to be a long walk. So let’s say he finally gets to Williamsburg and he finally finds our tenement. But remember, all the windows at 365 are going to be wide open and he’s had a long journey, so he must be very hungry. So if he has to kill and eat somebody, he probably would go through the first-floor window and eat all the Rothsteins who are living in apartment 1A. And once he’s full, there is no reason for him to go all the way up to the fifth floor and eat you.

“The story made good sense to me. ‘Okay,’ I said, ‘open the window. I’ll take a chance.'”

From his memoir, All About Me!, 2021.

When James Cameron was serving as second unit director on Galaxy of Terror (1981), he was asked to film an insert of a severed arm that’s being eaten by maggots. The team made a fake arm, covered it with mealworms, lit the shot, and rolled the camera, but the mealworms didn’t move. “They looked completely inert,” Cameron said. “So I thought, well, what would happen if we put a little electrical current through these worms? Maybe they’d jump around a little more.

“So we get all ready to do the shot and two guys I knew who were producers had come up behind me to watch me work because they had heard I was doing some directing. I rolled the camera and when I said ‘Action,’ what they saw was two hundred mealworms all come to life. When I said ‘Cut,’ they stopped moving.

“This must have been tremendously impressive to two low-budget horror-movie producers. I’m sure they ratcheted up in their mind that if I could get a performance out of worms, I probably could work very well with actors.” They hired him that day to direct Piranha II.

(Robert J. Emery, The Directors: Take One, 2002.)