Der Schrecken aus der Meerestiefe
Destination Inner Space (original)
Starring Scott Brady, Sheree North, Gary Merrill, John Howard, Wende Wagner, Mike Road, William Thourlby, Biff Elliot, Roy Barcroft, James Hong
It's a science-fiction and thriller movie, and has a rating of 4.6 out of 10 from Imdb which is fairly low for this kind of movie.
Watch it here
Not found streaming from Belgium.