Warner Bros has announced that Joaquin Phoenix is starring as the Batman super villain and crown prince of crime.
This is a stand alone movie that will not be connected to any current franchise.
Joaquin is the fouth actor in the last 10 years to be the joker following Heath Ledger (Dark Knight), Jared Leto (Suicide Squad), and Zach Galifianakis (LEGO Batman movie, it counts)
Todd Phillips has co-written the script and is directing. Production is slated to begin this Fall.