Cone of Silence
Starring Michael Craig, Peter Cushing, Bernard Lee, Elizabeth Seal, George Sanders, André Morell, Gordon Jackson, Charles Tingwell, Noel Willman, Delphi Lawrence
It's a thriller and drama 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 Italy.