Todd Phillips and Ivan Reitman in Road Trip (2000)

Ivan Reitman in National Lampoon's Animal House (1978)

Ivan Reitman and Matty Simmons in National Lampoon's Animal House (1978)

Ivan Reitman in No Strings Attached (2011)

Ashton Kutcher and Ivan Reitman in No Strings Attached (2011)

Natalie Portman, Ivan Reitman, and Mindy Kaling in No Strings Attached (2011)

Arnold Schwarzenegger, Emma Thompson, and Ivan Reitman in Junior (1994)

Arnold Schwarzenegger, Danny DeVito, and Ivan Reitman in Junior (1994)

"National Lampoon's Animal House" Matty Simmons, Ivan Reitman (co-producers) 1978 Universal Studios

Howard Stern and Ivan Reitman in Private Parts (1997)

Ivan Reitman, Jason Reitman, Carrie Coon, Mckenna Grace, and Finn Wolfhard in Ghostbusters: Afterlife (2021)

Charles Barkley, Patrick Ewing, Joe Pytka, Ivan Reitman, and Paul Westphal in Space Jam (1996)

Uma Thurman and Ivan Reitman in My Super Ex-Girlfriend (2006)

Luke Wilson and Ivan Reitman in My Super Ex-Girlfriend (2006)

David Duchovny, Seann William Scott, Orlando Jones, and Ivan Reitman in Evolution (2001)

Luke Wilson and Ivan Reitman at an event for My Super Ex-Girlfriend (2006)

Ivan Reitman and Jason Reitman at an event for My Super Ex-Girlfriend (2006)

Uma Thurman, Luke Wilson, and Ivan Reitman at an event for My Super Ex-Girlfriend (2006)

Uma Thurman and Ivan Reitman at an event for My Super Ex-Girlfriend (2006)

Ivan Reitman at an event for Thank You for Smoking (2005)

Ivan Reitman and Jason Reitman at an event for Thank You for Smoking (2005)

Harrison Ford and Ivan Reitman at an event for Six Days Seven Nights (1998)

Dan Aykroyd, Bill Murray, Harold Ramis, Ernie Hudson, Ivan Reitman, and Mark Bryan Wilson in Ghostbusters (1984)