An English spy (Tom Adams) guards a Scandinavian scientist (Karl Stepanek) who has sold an anti-gravity device to each side.
Practical Effects
The 'anti-gravity device' looks like a desk lamp and a colander had a baby.
Acting
Tom Adams's eyebrow game carries the entire British secret service.
Production
Shot in two weeks for pocket change; every corner cut is visible and glorious.

Director
Lindsay Shonteff
Trivia, insights & behind the scenes
Tom Adams played Charles Vine in two sequels because Sean Connery was busy being, well, Sean Connery.
Director Lindsay Shonteff later sued Eon Productions claiming Bond stole his ideas; the courts disagreed, shockingly.