- Director Michael Bay didn't like the script and often engaged Will Smith and Martin Lawrence in discussions about how the dialogue and scenes could improve. He often allowed them to improvise while the camera were rolling. He secretly told Will to call Lawrence a bitch before the car-scene. The whole "two bitches in the sea" was improvised, as was Martin's comment when Téa Leoni called him gay.
- The Porsche 911 used in the opening scene of the film was lent to the production by its director, Michael Bay, who was already a successful director of TV commercials.
- The car driven by Fouchet during the end car chase is an old AC Superblower, basically a Shelby Cobra with a modified V8 engine. It is considered to be one of the fastest muscle cars ever created.
- When the Cobra crashes, the body splits and tears, showing it to be made of fiberglass, proving it is not an original Shelby Cobra (they had metal bodies).
- The Internal Affairs Agent's part was originally written for a man to play.
- The building used for the police headquarters is actually the county courthouse for Dade County.
- According to Jon Lovitz, Bad Boys (1995) was originally written with Lovitz and Dana Carvey in mind for the leading roles.
- The original title for this movie was Bulletproof Hearts, and was written for Dana Carvey and Jon Lovitz.
- The role of Mike Lowry was destined for Arsenio Hall, until Michael Bay caught an episode of "The Fresh Prince of Bel-Air" (1990) and wanted Will Smith instead.
>>> WARNING: Here Be Spoilers <<<
Trivia items below here contain information that may give away important plot points. You may not want to read any further if you've not already seen this title.
- SPOILER: The 4 barrel pistol that Fouchet pulls out just before being killed is the COP .357. The pistol is no longer in production.
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