Against a Crooked Sky is a 1975 American Western film directed by Earl Bellamy, starring Richard Boone, Stewart Petersen, and Henry Wilcoxon.

To secure his sister's freedom, he must sacrifice his own life by passing the test of "Crooked Sky" and shield his sister from an executioner's arrow.

Along the way, he recruits a broken-down, drunk prospector and his dog to help him track down the unknown tribe and rescue his sister.

Parts of the film were shot in Professor Valley, Martin Ranch, Pace Creek, Castle Valley, Dud's Bottom, Arches National Park, Dead Horse Point, and the Dolores River in Utah.

[3] The novelisation was issued by Eleanor Lamb and Douglas Stewart, Bantam Books, 1976.