Joaquin Phoenix and Lady Gaga's characters fall for each other at the start of the sequel, but what is their future?
Director Todd Phillips has said "it just kind of got in the way of the moment"
The film also took just $40million at the domestic box office on opening weekend, well short of expectations
Todd Phillips' sequel is out in cinemas today (October 4)
Director Todd Phillips might be done with the DC universe
Speaking about the song, Gaga said: "It was inspired by my character Harley, and just also kind of this reflection on my life as a performer"
"I'm also really excited about this idea that I don't have to adhere to an era if I don't want to"
"I think the whole experience inspired me through and through"
The 'Joker: Folie A Deux' companion album is set for release tomorrow (September 27)
The film arrives in cinemas next week