Trivia: Enemy of the State
- Actor Allusion: A photo of Hackman's character in The Conversation is used for Brill's file. Critics such as Kim Newman advanced the theory that the two characters are one and the same.
- Hey, It's That Guy!: The NSA team includes Jack Black, Jamie Kennedy, Seth Green, the sniper from Saving Private Ryan (Barry Pepper), Rico's squad mate, Danno Williams and Prof. Quirrell, John Voight is married to Skyler White. Also, Jason Robards (as the killed senator) and Tom Sizemore (as the mobster) are uncredited.
- Hey, It's That Place!: The law firm Dean works for is in the same building used as the headquarters in JAG.
- Life Imitates Art: The current and ongoing controversies surrounding federally-endorsed NSA surveillance conducted on the greater American public certainly seem to echo the points addressed by the film.
- Technology Marches On: For a tech thriller, it's certainly strange in retrospect to see characters making such extensive use of ZIP discs.