A Matter of WHO
Starring Terry-Thomas, Sonja Ziemann, Alex Nicol, Richard Briers, Honor Blackman, Guy Deghy, Carol White, Clive Morton, Geoffrey Keen, Martin Benson
It's a comedy and drama movie, and has a rating of 6.2 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Germany.