In the dream reunion scene, when Romy and Michelle are on stage to receive their award, you can see just above the stage in the lights that are strung what looks like a banana on one side, and a carrot on the other just like the magnets that Christie put on Michelle's back brace in high school.

The car dealership in the film where Mira Sorvino's character works is called Rusnak - located in Pasadena, California on Colorado Blvd.

Lisa Kudrow made up the entire "special glue" formula on the spot.

Art Fry is the inventor of Post-Its.

Lisa Kudrow received a degree in Biology, and Mira Sorvino a degree in Asian Studies, so during production of Romy and Michele, they nicknamed each other "Smart" and "Smarter".

According to the Universal Studios back lot tour, the clock tower is the same one that is seen in the movie To Kill a Mockingbird (1962). The area is referred to as Mockingbird Square, and it is a stone's throw away from other famous filming locations, such as the exterior of the Psycho (1960) house and the "Red Sea" that was used in History of the World: Part I (1981) (it is incorrectly sometimes noted as where The Ten Commandments (1956) was filmed).

The "main street" is the same one used in Gremlins (1984).

The mall where Marty McFly meets Doc Brown for their time travel experiment is called "Twin Pines Mall". Doc Brown comments that old farmer Peabody used to own all of the land, and he grew pines there. When Marty goes back in time, he runs over and knocks down a pine tree on the Peabody's property. When he comes back to the mall at the end of the film, the sign at the mall identifies the mall as "Lone Pine Mall".

When Marty is trying to re-start the DeLorean in 1955 as he prepares to return to 1985, the car's headlights flash the Morse Code for "SOS".

The world premiere was screened at the (now gone) Pickwick Drive-In, in Burbank, California. The guests rode horses into the drive-in for the show.

Filmed on the same outdoor sets as Westworld (1973).

One day in the Warner Bros. commissary, Mel Brooks and the other writers were seated at a table opposite John Wayne. The Duke turned and said he had heard about their Western, the one where people say stuff like "blow it out your ass". Mel handed The Duke a copy of the script and said, "Yes, and we'd like you to be in it." According to Brooks, the Duke turned down the offer the next day by saying, "Naw, I can't do a movie like that but I'll be first in line to see it!"

Hedy Lamarr sued Mel Brooks over the use of the name Hedley Lamarr and settled out of court.

According to Mel Brooks (in the commentary for Spaceballs (1987)) when Gene Wilder came on the cast for this movie, he requested that Mel Brooks do his movie idea next. Gene Wilder's idea was Young Frankenstein (1974).

Madeline Kahn started working on the movie the day after being fired from the role of Agnes Gooch in Mame (1974). Lucille Ball believed that Kahn got herself fired (by deliberately acting poorly) so that she could take the role of Lili Von Shtupp in Blazing Saddles, but still get paid for the Gooch role in Mame, which by her contract wouldn't have happened if she'd merely quit.