In March 2001, a U.S. District Court jury in Birmingham, Michigan, ruled that 20th Century Fox stole the script idea, "Jingle All the Way", from Detroit High School biology teacher, Brian Webster. The studio was ordered to pay $19 million, later reduced to $1.5 million. Webster submitted the script, then named "Could This Be Christmas?", to the studio in 1994 and never received payment or credit despite the film making $183 million. Fox appealed and the verdict was reversed, since Webster's script was submitted after the studio had already purchased a treatment (summary/outline) of what would become the film's script.
When Howard is in Jamie's room apologizing, in the background on Jamie's wall is a picture of the Incredible Hulk. In the 70Arnold Schwarzenegger's friend and fellow body builder Lou Ferrigno starred in - The Incredible Hulk' (1973)_. They also starred together in Pumping Iron (1977) and have both played Hercules in separate movies.
After Howard is caught breaking into the neighbor's house, Ted says "you can't bench press your way out of this one." This is a reference to Schwarzenegger's earlier years in which he was a professional bodybuilder.
In order for Howard (Arnold Schwarzenegger) and the mall Santa (James Belushi) to enter the warehouse, the mall Santa has to use the password "Jingle Bells; Batman Smells". Arnold Schwarzenegger would go on to play Mr. Freeze in Batman & Robin a year later and appeared as himself in a photograph in Max Schrek's office in Batman Returns four years prior.
This film features two actors who have played a Batman villain: Arnold Swartzneggar (who played Dr. Victor Fries/Mr. Freeze in Batman and Robin (1997)) and Richard Moll (who played Harvey Dent/Two-Face in Batman: The Animated Series (1992)).
Both Arnold Schwarzenegger and Jake Lloyd have played slaves and robots. Arnold Schwarzenegger played Conan in "Conan the Barbarian", in that film, Conan is enslaved as a boy and Schwarzenegger played The Terminator in "The Terminator" films, in those films The Terminator is a cyborg from the future and Jake Lloyd played Anakin Skywalker in "Star Wars: Episode I - The Phantom Menace", in that film Anakin Skywalker is an enslaved boy who later becomes a Jedi and the evil robotic Sith Lord Darth Vader.
When Harold (Arnold Schwarzenegger) and Myron (Sinbad) burst into the radio station, the D.J. (Martin Mull) is taking a call for the Eight Reindeer name contest. The incorrect names the contestant gives are: "Randy, Tito, and Jermaine". These are the names of three of Michael Jackson's brothers.