Summer School is a 1987 American comedy film directed by Carl Reiner and starring Mark Harmon as a high school gym teacher who is forced to teach a remedial English class during the summer. The film co-stars Kirstie Alley and Courtney Thorne-Smith. It was distributed by Paramount Pictures and produced by George Shapiro and Howard West. The original music score was composed by Danny Elfman.

Thomas Mark Harmon is an American actor and former football player. He is perhaps best known for playing the lead role of Leroy Jethro Gibbs on NCIS. He has appeared in a wide variety of television roles since the early 1970s, including Dr. Robert Caldwell on St. Elsewhere, Detective Dicky Cobb on Reasonable Doubts, and Dr. Jack McNeil on Chicago Hope. He also starred in such films as Summer School, Prince of Bel Air, Stealing Home, Wyatt Earp, Fear and Loathing in Las Vegas, Freaky Friday, and Chasing Liberty.