The Runaway Bus
Starring Frankie Howerd, Margaret Rutherford, Petula Clark, George Coulouris, Terence Alexander, Toke Townley, Belinda Lee, John Horsley, Anthony Oliver, Sam Kydd
It's a comedy and thriller movie, and has a rating of 6.1 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Austria.