Reitman also served as producer for such films as National Lampoon's Animal House (1978), Heavy Metal (1981), Space Jam (1996) and Private Parts (1997).

[1] Both of Reitman's parents were Hungarian Jews; his mother survived the Auschwitz concentration camp, and his father was an underground resistance fighter.

[citation needed] In Toronto, he produced the stage production Spellbound (1973) starring his university friend, magician Doug Henning, with a script by David Cronenberg and score by Howard Shore.

[16] Ivan remained producer, and stood in for the late Harold Ramis as Egon Spengler using visual effects.

[18] In the early 1980s, Tom Mankiewicz wrote a script for a film titled The Batman, with Reitman attached to direct.

[19] Following the deaths of Holden and Niven and rewrites of the script, Reitman left the project and was replaced by Gremlins director Joe Dante, but the film was never made.

In the mid-1980s, Reitman was in contention to direct Memoirs of an Invisible Man, but departed from the project due to creative differences with star Chevy Chase.

[20] In February 1996, it was reported that Reitman was planning a remake of Creature From the Black Lagoon at Universal with a script by Herschel Weingrod and Timothy Harris, as well as a potential Marx brothers feature,[21] but neither materialized.

[23] In 2001, Reitman revealed he would direct MGM's remake of The Pink Panther, with Mike Myers in the role of Inspector Clouseau.

[34] In July 2017, Reitman stated that Ecto Force had been postponed to focus on an animated Ghostbusters film that he would produce and co-direct alongside Fletcher Moules.

His daughter Catherine is the creator, executive producer, writer and star of the CBC comedy series Workin' Moms.

[36] In 2009, he was made an Officer of the Order of Canada "for his contributions as a director and producer, and for his promotion of the Canadian film and television industries".