Jet Storm
Starring Richard Attenborough, Stanley Baker, Harry Secombe, Hermione Baddeley, George Rose, Mai Zetterling, Diane Cilento, Virginia Maskell, Elizabeth Sellars, David Kossoff
It's a thriller and mystery movie, and has a rating of 6.5 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.