Many of the "props" in the film are made by "Acme".
Before the Hamlet sequence, wherein the Laurence Olivier version is played on a projector, the teacher who introduces the film is Joan Plowright, an English actress and Laurence Olivier's third wife. Noting her students' apparent ignorance of Olivier's storied career, she tells them they may remember him as Zeus in Clash of the Titans (1981), one of Olivier's final roles.
During the shooting of the movie, Arnold Schwarzenegger gave an interview on the set to Dagmar Koller, a famous Austrian musical-star, for an Austrian television show. After the interview Schwarzenegger invited her to appear in the movie. She can be seen in the police headquarters as Danny talks to her.
After Benedict murders the car mechanic and wants to confess, you can see someone in the background carrying a pair of recently stolen shoes.
Danny tells Jack that this is Meredith/Whitney's first movie. Last Action Hero (1993) is also the first feature film of Bridgette Wilson, who plays Meredith/Whitney.
Due to delays with the film Hook (1991), this was the first movie released in SDDS (Sony Dynamic Digital Sound). With five front channels and two rears, it was also the first film to include a 7.1 channel SDDS mix, rather than the more common 5.1 SDDS.
The role of Benedict was originally intended for William Atherton.
The filming involved a 3:00 pm to 3:00 am, 7-day, shutdown of six-block Times Square area in New York City for the production. Originally, a giant 75-foot balloon of Arnold Schwarzenegger held three few sticks of dynamite in the balloon's hand but, following the then-recent 1993 bombing of the World Trade Center, Richard Brick, Commissioner of the New York City Mayor's Office of Film, Theatre and Broadcasting and Gary Martin, President of Production at Columbia Pictures agreed to change the prop to a badge.
Benedict's pistol is a Dan Wesson .357 revolver. Most noted for its interchangeable barrels on the same frame, from 2 inches to a whopping 10 inches. Slater carries a Desert Eagle .44 Magnum automatic.
In the Blockbuster store and in the newspaper that is being read by Benedict, there is advertisement for Dracula (1992) and Single White Female (1992).
The explosion of Jack Slater's ex-wife's house was used from The Last Boy Scout (1991), also written by Shane Black.
Charles Dance has said in interviews that his part was written with Alan Rickman in mind and suspects Rickman passed on the project.
While Danny is in the movie, he says John Practice (F. Murray Abraham) killed Mozart, a reference to the movie Amadeus (1984), where Abraham played Antonio Salieri. Later in the film, when Slater and Danny's mom are talking, the Overture to The Marriage of Figaro can be heard, composed by Wolfgang Amadeus Mozart.
When Danny is arguing with Slater over checking to see if Benedict is dead after the two play chicken, he makes a reference to a villain in Die Hard (1988) (also directed by John McTiernan) who comes back at the end of the movie after being presumed dead. Shortly after, you can hear a soundtrack excerpt from the Die Hard theme in the background.
Has the distinction of being the first film to be advertised in space. For $500,000, the film's title was graffiti-ed onto the side of an unmanned NASA rocket which was launched into space by Arnold Schwarzenegger.
These are the following guns in the movie. Slater: Desert eagle 50. caliber Automatic Express; Benidict: Hammerli .357 revolver; Danny: Walther PP Vavoldi: Walther PPK inscripted; Criminals: MP5ks, M3A1 grease guns, and Tec 9 sub-machine guns; Slater/Hamlet:Switches from Mac10 to Mp5k Van: Minigun. Whitney: 38. snubnose(6 shots, not 5); Swat member: M4A1.
Charles Dance said in interviews that, after being told that he had won a part turned down by Alan Rickman because of the salary, he wore a t-shirt on set which read; "I'm Cheaper Than Alan Rickman!".
"Jack Slater" when trying to pose as Arnold Schwarzenegger in the "real world" keeps getting the name wrong, and calling himself "Arnold Braunschweigger." The first part of Arnold's real name, "Schwarz," means "black" in German, while the first part of his wrong name, "Braun," means "brown" in German.
Producer Mark Canton optioned the script for $350,000.
The AC/DC song "Big Gun" was specifically written for this movie after Arnold Schwarzenegger personally approached the group and asked them to write a song for it.
Just after Frank's house explodes, the black cop says, "Two days to retirement" as a nod to Danny Glover's character in Lethal Weapon (1987). At that point, you can hear a soundtrack excerpt from the Lethal Weapon theme in the background.