Last Year at Marienbad
Alain Resnais, 1961
This is one of those highly stylized European films where emotionally flattened interactions take place at a languid pace in surreal settings. In these movies, telling a coherent story takes a back seat to style, mood, and image. Proponents of such films celebrate their broadening of ideas about what cinema can achieve, what it can be. Others find them insufferable. I think both viewpoints are basically correct.
Plot: At an excruciatingly posh resort hotel, a man tries to convince a woman that they had an affair the previous year. It is possible that he is telling the truth, or that he is making it all up. It is also possible that he raped her last year, or that he died last year and is now a ghost. It sounds like a more interesting puzzle than it actually is.
Visuals: Magnificently shot in black and white, with lots of memorable images.
Dialog: In French with subtitles, underlain by interminable pipe organ music.
Prognosis: I don't see any particular reason for you to subject yourself to this one.