Many other good ones have already been mentioned, so I won’t repeat those titles. But “Suspiria” (2018 edition) definitely deserves a mention. The ending is just … well, clearly somebody amongst the original writers had some issues regarding reproductive systems … but the other 98% of the movie feature brilliant suspense & eiriness at all times. And Tilda Swinton is simply to-die-for in it. ;)
Decided to OpenSource instead of Software Patent (as my employer was urging me). Nowadays, that technique is used in every decent Image CDN + compression tool. Still proud to see it everywhere. Maybe it wouldn’t have made it if had been patented.