Deliverance

Deliverance is a 1972 American thriller film directed and produced by John Boorman from a screenplay by James Dickey, who adapted it from his 1970 novel. It follows four businessmen from Atlanta who venture into the remote northern Georgia wilderness to go whitewater canoeing down the Cahulawassee River before it is dammed, only to find themselves in danger from the area's inhabitants and nature. It stars Jon Voight, Burt Reynolds, Ned Beatty, and Ronny Cox, with the latter two making their feature film debuts.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.