Die seltsamen Wege des Pater Brown

I'm old enough to have seen this film on its release in the cinemas, and, whilst it's not easy to think of a film these days being a success unless millions have been spent on it, this film hung on two superlative performances from Alec Guinness and Peter Finch and the screenplay was worth two of anything you'd hear today. So why, I ask, has it not been released on DVD for a new generation to enjoy? Is it thought too dated? Not exciting enough? Too cerebral? Not a bit of it. It's a thoroughly enjoyable film with moments of high tension and a supporting cast rich in character (including Bernard Lee who was the first M in the Bond films)