Spaceballs (1987)

Continuity mistake: The head of Mega-Maid mysteriously shrinks in size. After Spaceball-1 transforms into Mega-Maid, the head is gigantic enough for a Winnebago to fly through for a considerable length of time. However, later on in the film, after the head has been jettisoned and crashed on a beach, the head is only big enough to hold a few dozen people. This can be determined by the size of the people coming out of her nose.

Continuity mistake: After Dark Helmet has stolen Lone Starr's ring of the Schwartz and dropped it down in the grill, Lone Starr is wearing it again after he gets into his Starship.

Deliberate mistake: There is a shot of the huge Yogurt statue that is in slow motion. You can see that the smoke from the statue is rising slower than it normally would. This was obviously done to make the shot longer for Mel Brooks' voice over to fit.

Trivia: Mel Brooks allegedly waited so long to spoof Star Wars in order to spoof the entire trilogy.

Cubs Fan

Trivia: On the DVD case, Barf's eye patch is different from where it is the rest of the movie.

Trivia: King Roland tells Lone Starr and Barf that Vespa's vehicle was near the Jupiter II system. Jupiter II was the name of the spaceship from the TV series "Lost in Space."

Dark Helmet: Before you die there is something you should know about us, Lone Star.
Lone Starr: What?
Dark Helmet: I am your father's brother's nephew's cousin's former roommate.
Lone Starr: What's that make us?
Dark Helmet: Absolutely nothing! Which is what you are about to become.

[The self destruction cancellation button is out of order.]
Dark Helmet: F**k! Even in the future nothing works!

Col. Sandurz: Lord Helmet.
Dark Helmet: WHAT?!
Col. Sandurz: You're needed on the bridge, sir.
Dark Helmet: KNOCK ON MY DOOR! KNOCK NEXT TIME!
Col. Sandurz: Yes, sir.
Dark Helmet: Did you see anything?
Col. Sandurz: No, sir. I didn't see you playing with your dolls again.
Dark Helmet: Good.

Question: When Spaceball 1 achieves ludicrous speed and overshoots the Winnebago, Barf is heard to remark "they've gone to plaid". Is this just a joke about eighties style special effects or is it a reference to a specific film?

Question: When Dark Helmet says that there are two sides to every Schwartz, is this an obscure reference to something else, besides the obvious light side and dark side of the force?