The Eternals are a group of humans, existing in a different temporal plane, free to travel through space and time, who guide and manipulate Earth's history. One day, Andrew Harlan, a technician for the Eternals, falls in love with a woman from the 48th century. When it transpires that the Eternals want to change history and, in so doing, erase her from existence, Harlan revolts.
Based on a novel by Isaac Asimov, The End of Eternity is a cerebral and philosophical sci-fi movie from the waning days of the Soviet Union.
The directing is very static and staid (you get the feeling Yermash was going for a Tarkovsky vibe, but lacks the genius), however the story is good enough, with plenty of twists, turns and surprises, to keep you interested for its 135 minute run-time. It also features some wild, funky set design. There is an incongruous, tacked-on ending, different from the novel, that's meant to give the story an anti-capitalist subtext, but it's hard to look at the Eternals, a bunch of stuffy bureaucrats in a rigidly hierarchical system, obsessed with social engineering and the betterment of mankind, regardless of the wishes of mankind itself, and not see them as a critique on communism.
Review by Friend_of_Milhouse from the Internet Movie Database.