When this film was released it used what I thought was a new technique to convey a foreign language spoken by the characters. The film is part suspense, part thriller. Far better than any James Bond flick and by far better than the Spy Who Came in from the Cold. It keeps moving with twists to keep the viewer on his/her seat edge wondering who is who and who can be trusted. Why this hasn't been released on video is a complete mystery to me. All this time I've been thinking that every print must have been destroyed in one of the many studio archive fires a few years back.