Trivia: When the movie played in theaters, there was a scene where Dr. Catheter begins to tell Billy about the gremlins before the movie is interrupted by gremlins until they are threatened by Hulk Hogan. When the movie was released on VHS, the scene was changed to static appearing and gremlins constantly changing the channels. This caused many people who bought or rented the movie to think there was something wrong with the tape and took it back to the stores they purchased it from.
Trivia: Nicolas Cage actually owned the Ferrari 550 Maranello that he drives in this movie.
Trivia: The first MCU movie to feature the word "fuck", when Quill tells Nebula to "open the fucking door", a line that was improvised on-set and kept in because it was so funny. James Gunn anticipated being told to cut it out, but Kevin Feige left it up to Gunn's discretion. Feige said the Russo brothers had a "fuck" in an early cut of Avengers: Endgame, but they "didn't want that to be their legacy, so if you want that to be your legacy, then sure." James Gunn said that just made him even more keen to keep the line in, at which Feige "laughed his ass off."
Trivia: Melinda Dillon was given the wrong script on purpose when they filmed the Chinese restaurant scene. She had no idea that when they brought the duck out it would have its head still attached. All of her reactions, including when she first sees the duck and when the server cuts the head off, were completely genuine.
Trivia: HIDDEN MICKEY: At the end, fireworks go and 3 go into the shape of Micky Mouse.
Trivia: David Graf's wife Kathryn has a cameo in this movie as an airline stewardess.
Trivia: The "old gangster movie" that's on the TV in Harry's apartment is the fictional movie "Angels with Filthy Souls," which was seen in the movie "Home Alone." The director wanted a detective movie for the scene, and said: "We needed something and I hadn’t figured out what I was going to put on that TV yet...Just as a laugh, we got the movie that they shot for Home Alone off of YouTube...We could never beat it!"
Trivia: The house with the blue door (William's residence) was formerly the home of the movie's screenplay writer, Richard Curtis.
Trivia: The Titans first encounter Slade while he's stealing a power crystal. They mistake him at first for the Marvel character, Deadpool and proceed to argue back and forth about him being Deadpool or not. With him saying that he's not Deadpool, that actually Deadpool should be saying he's not Slade. This is a joke and reference to the fact that the designer of Deadpool based his looks, abilities, and character originally off Slade/Deathstroke because he wanted to draw Deathstroke. Until Deadpool's backstory and personality were changed to what we know him as today.
Trivia: Executive Producer Peter Billingsly has a cameo as the ticket agent at the airport. Peter also played Ralphie Parker in the 1983 movie favorite A Christmas Story.
Trivia: As Rocky flies his tricycle over the fence to aid Ginger with the launch ramp, he flashes the European "flipping the bird sign" - index and middle fingers extended - to Mrs. Tweedy.
Trivia: This movie was originally supposed to be part of the TV series "Amazing Stories" but Steven Spielberg like the story so much that he decided to make it a full length film.
Trivia: During the opening musical number, Tracy passes a man on the sidewalk wearing a trench coat who then flashes the crowd; this is John Waters, the writer and director of the original 1988 version.
Trivia: The actress playing Connie has the same surname as her character - Moreau.
Trivia: Throughout the whole movie, the cars in the backround are Volkswagon Beetles.