Frozen Alive (1964)

Starring Mark Stevens, Marianne Koch, Wolfgang Lukschy, Joachim Hansen, Delphi Lawrence
Directed by Bernard Knowles
(actor & director credits courtesy IMDB.com)

Two scientists who have succeeded in deep-freezing and thawing monkeys want to do the same to a human being, but the head of their project is against it.

This is an entertaining sci-fi drama, although it places the ethics of experimenting on human beings on the back burner in favor of playing up a love triangle between the female scientist, the male scientist, and his wife.  Set in and filmed in Germany, the film doesn't appear to be dubbed, but actually filmed in English, with the German accents of some of the actors adding some color here.  Although the film's fairly straightforward without much depth, there's good acting all around, and I enjoyed it.