First Trailer Released for Joaquin Phoenix's 'Joker' Movie Warner Brothers have launched the first teaser trailer for their upcoming Joker origin story. ‘Joker’ is directed by Todd Phillips and stars Joaquin Phoenix as the famed psychopathic character. The trailer offers a glimpse into the early life of the Joker and what ultimately causes his descent into madness. The movie is set to hit theaters on October 4, 2019. ‘Joker’ is part of Warner Bros. latest attempt to distance themselves from the concept of an overarching cinematic universe. They officially announced their decision to deemphasize the interconnected universe in 2017 after the release of ‘Wonder Woman.’ Their new sub-brand will focus on creating standalone films about various DC characters. It will allow directors to create movies that play to their own strengths, rather than conform to a strict set of expectations. Other movies in this category are a future 'Suicide Squad’ movie, and a horror spinoff of ‘Aquaman.’