Somebody's Stolen Our Russian Spy

Somebody's Stolen Our Russian Spy or O.K. Yevtushenko is a 1967 Spanish/British international co-production Eurospy film shot in Spain and Portugal. The film was co-produced by James Ward and directed, co-written and co-produced by José Luis Madrid. The film stars Tom Adams in his third and final appearance as British secret agent Charles Vine. The film was shot in Spain instead of the usual UK location. When Embassy Pictures chose not to release it, the film languished in a film laboratory until 1976.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.