Timothée Chalamet was the first actor to be a host and musical guest on "Saturday Night Live." It's the latest stunt to promote "A Complete Unknown" to fans and the Academy Awards panel, alike.

A Complete Unknown” is the rare Hollywood movie that has inspired a reckoning. Everywhere, on social media, in mainstream media, or simply on the part of so many who have seen the film, a tingling conversation is taking place — a kind of collective meditation/investigation into who Bob Dylan was,