Prom Night is a 1980 Canadian slasher film directed by Paul Lynch, based on a story by Robert Guza Jr., and starring Leslie Nielsen and Jamie Lee Curtis. The story concerns a group of high school seniors who are targeted by a mysterious masked killer in revenge for their culpability in the accidental death of a young girl six years earlier. The anniversary of the incident falls on their high school's prom night, when the older sister of the dead girl is being crowned Prom Queen.
Filmed in Toronto in late 1979 on a budget of $1.5 million CAD and released in July 1980, Prom Night was a commercial success upon its release, especially within the drive-in theater circuit. Despite receiving generally negative reviews from film critics as well as criticism from Gene Siskel and Roger Ebert over its advertising campaign, the film went on to become Canada's highest-grossing horror film of 1980, earning nearly $15,000,000 in the United States. The film received Genie Award nominations for editing and for star Jamie Lee Curtis's performance, and would later accrue status as a cult film.