The Thin Red Line is a 1998 American epic war film written and directed by Terrence Malick. It is the second screen adaptation of the 1962 novel of the same name by James Jones, following the 1964 film. Telling a fictionalized version of the Battle of Mount Austen, which was part of the Guadalcanal Campaign in the Pacific Theater of the Second World War, it portrays U.S. soldiers of C Company, 1st Battalion, 27th Infantry Regiment, 25th Infantry Division, played by Sean Penn, Jim Caviezel, Nick Nolte, Elias Koteas, and Ben Chaplin. The novel's title alludes to a line from Rudyard Kipling's poem "Tommy", from Barrack-Room Ballads, in which he calls British foot soldiers "the thin red line of heroes", referring to the stand of the 93rd Regiment in the Battle of Balaclava of the Crimean War.

Terrence Frederick Malick is an American filmmaker. His films include Badlands (1973), Days of Heaven (1978), The Thin Red Line (1998), for which he received Best Director and Best Adapted Screenplay Academy Award nominations, The New World (2005), and The Tree of Life (2011), which garnered him another Best Director Oscar nomination and the Palme d'Or at the 64th Cannes Film Festival.