The Cook, The Thief, His Wife and Her Lover (1989).
It's been almost 30 years since I last saw this film and it's every bit as good as I remember it. Peter Greenaway's films often divides opinions but I think this is one of his most accessible films and his best. It's a superb piece of storytelling that's intriguing, dramatic, mysterious, horrific, funny, shocking and like no other film I've seen. The direction is imaginative, as is usually the case with Peter Greenaway films, the use of colour is inventive, the cinematography and set design are stunning, the score is a work of genius and the acting is first class, especially by Sir Michael Gambon. There isn't a weak link in this film and I think it's a masterpiece of British cinema.