Tosi valheita

When Harry tells Gib that Helen is having an affair, Gib tells a story about his second wife taking everything when she left him, even the ice cube trays from the freezer. This is a direct reference to Tom Arnold's divorce from Roseanne Barr that was happening at the same time - she was reported to have taken his ice cube trays when she left him as well. Arnold told the story to James Cameron on the set while saying: "What kind of sick bitch takes the ice cube trays out of the freezer?" Cameron thought the line was hilarious, and incorporated it into the film.

Bullets fired from an AK-47 would not shatter the canopy on a Harrier jet. This was known by the filmmakers, but the shattered canopy was included to avoid having to worry about reflections on the canopy glass.

In the middle of the credits, Gib (who's waiting outside in the stereotypical spy van as Harry's having fun inside the party) says, "You know what? I'm sick of being in the van. You guys can be in the van next time. I've been in the van for fifteen years, Harry."

The UK cinema version was cut by 1 second to remove an ear-clap, and VHS versions received a further 8 seconds of cuts (the video sleeve actually carried the note, "This film has been edited for censorship purposes"). These cuts included: removal of a head-butt; a reduction in impacts to the face with a hand dryer; a reduction in impacts to a head being rammed into a urinal; a reduction in length of sight of bloody facial injury; sight of a trocar being thrown and embedded into an eye; removal of neck breaks (including a rearranging of footage); removal of a tire iron being rammed into a ribcage. The original 2001 DVD release (issued by Universal) was an uncut version, likely taken from the Australian DVD, and wrongly featured the fully uncut print. It was recalled shortly afterwards and replaced in 2003 with a Columbia release, which features the same cuts but edited in a much more obvious and choppy fashion, using repeated and slowed-down footage in an attempt to maintain a consistent runtime. The 2008 "Greatest Ever Action Heroes" DVD collection features the full uncut version, but the BBFC did not officially waive the cuts until February 2010.

Edited into 5 Second Movies: True Lies (2008)