I watched this a few years ago when Optimum put out the UK DVD. It’s a good film. I know the controversial link between psychosis and Downs’ Syndrome doesn’t hold up as a plot device today, but there’s a lot of style to spare and Bennett and Mills are both good. Pretty sure the UK disc is fullscreen, if memory serves me right.
This is the only Boulting Bros. film I’ve seen. I know that TWISTED NERVE is something of an anomaly as most of their other films are either dramas or comedies but I’ d appreciate any recommendations all the same.