Journey to the Far Side of the Sun
Journey to the Far Side of the Sun (also known by its original title Doppelgänger) is a 1969 British science fiction film directed by Robert Parrish and starring Roy Thinnes, Ian Hendry, Lynn Loring, Loni von Friedl and Patrick Wymark. It was written by Gerry and Sylvia Anderson and Donald James, and produced by the Andersons for their company Century 21.
Source: Wikipedia — Journey to the Far Side of the Sun (CC BY-SA 4.0)