In the sequel to 2019’s The Joker, the billion-dollar hit that won an Oscar for star Joaquin Phoenix, 49, the troubled clown falls for a fellow inmate at Arkham Asylum (Lady Gaga), and mayhem ensues. Who says a psychologically bent action film can’t be a musical too? The A-list cast also includes Oscar nominees Catherine Keener, 65, Steve Coogan, 58, and Brendan Gleeson, 69.