Zardoz

In the late 23rd century, a savage trained only to kill finds a way into the community of bored immortals that alone preserves humanity's achievements.

Zardoz is a 1974 adventure fantasy movie directed by John Boorman, starring Sean Connery, Charlotte Rampling, John Alderton. It holds an IMDb rating of 5.8/10 from 25,801 votes and runs 1h 45m.