1. “Joker: Folie à Deux” (R) Trailer Joaquin Phoenix returns as Arthur Fleck for the sequel to 2019’s “Joker” and this one is a musical. While he’s locked up in Arkham Asylum awaiting trial for the murders from the first movie, he falls for another patient during a music therapy session. Brendan Gleeson from the “Harry Potter” movies is in it as an abusive…… More