The official Director of Public Prosecutions list of films that potentially violated the Video Recordings Act of 1984. A guide to help local constables in their raids of video stores, many of these would be officially banned in the UK, and altogether a great canon of the ugliest, nastiest and downright brutal horror films of the 60s, 70s and 80s (although some of these are quite tame).
Alphabetical by the title the DPP used to refer to them, which might not be what Letterboxd has them listed under.