Joker: Folie à Deux. The 60-second video features Lady Gaga's Harley Quinn visiting an emaciated Arthur Fleck, or Joker, played by Joaquin Phoenix, who is in a mental institution. Before she leaves, she pulls out a red lipstick and smears a clownish grin,

EW's exclusive clip from the "Joker" sequel shows Gaga and Phoenix passionately kissing before passing a puff of cigarette between their lips.

Director Todd Phillips and his stars were showered with a 10.5-minute standing ovation inside Venice's Sala Grande cinema Wednesday night as they unveiled their follow-up to 'Joker', which won the prestigious Golden Lion in 2019.