The Rocky Horror Picture Show (1975)

Less a film to watch than one to take part in. Since its midnight screenings began in New York in 1976, fans have turned up in costume, shouted lines back at the screen and danced the "Time Warp" in the aisles, and it is still running in theaters as the longest theatrical release in film history. At home, the best version is a group that dresses up and learns a few callbacks beforehand. Watched cold and quietly, its camp musical horror can feel baffling, so save it for the night the house is already in a mood to perform.