* CreatorBacklash: Brian Garfield, the author of the original novel, sued the filmmakers for twisting the source material (ironically, the point of Garfield's novel was that vigilante tactics ''weren't'' the solution). You can probably guess from the four subsequent sequels that he lost.
* HeyItsThatGuy: The movie has Creator/JeffGoldblum in his screen debut playing one of the criminals who attack Kersey's wife and daughter. DenzelWashington and Sonia Manzano (''Series/SesameStreet'''s Maria) also have tiny bit parts; as a mugger and a grocery clerk respectively. Creator/ChristopherGuest also appears as a patrolman.
* WhatCouldHaveBeen:
** Music/FrankSinatra, Creator/ClintEastwood and Creator/SteveMcQueen turned down the role of Paul Kersey.
** There were plans for a sixth film with the subtitle ''The New Vigilante''.
** There were plans to bring back Kersey's girlfriend from the second film for a cameo in the third or fourth--to be killed off, of course.