Ivan Reitman OC (/ˈraɪtmən/; October 27, 1946 – February 12, 2022) was a Canadian film director and producer. He was known for his comedy films, especially in the 1980s and 1990s. Reitman was the owner of The Montecito Picture Company, founded in 1998.

Films he directed include Meatballs (1979), Stripes (1981), Ghostbusters (1984), Twins (1988), Ghostbusters II (1989), Kindergarten Cop (1990), Dave (1993), Junior (1994) and Draft Day (2014). 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).

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