Watch Joaquin Phoenix in his Oscar-winning dual role as Arthur Fleck/Joker come together with Oscar winner Lady Gaga (“A Star Is Born”). Watch the I Do clip from Joker: Folie à Deux and look for the full movie on digital. SUBSCRIBE to Warner Bros. Entertainment: bit.ly/32v18jf About Joker: Folie à Deux Joker: Folie à Deux finds Arthur Fleck institutionalized at Arkham awaiting trial for his crimes as Joker. While struggling with his dual identity, Arthur not only stumbles upon true love, but also finds the music that's always been inside him. Look for it on digital: warnerbros.com/movies/joker-folie-a-deux#watch Watch more Joker: youtube.com/watch?v=sESTA34wvPA&list=PL7Eup7JXScZwSF-JjbppW8KtuRA1ol0mI About Warner Bros. Entertainment: At Warner Bros. Entertainment, we believe in the power of story. From classics to contemporary masterpieces, explore and watch a library full of extraordinary, stirring, and provocative entertainment that goes beyond the...