Rainer Werner Fassbinder wrote the entire screenplay for the film by hand during a single 12-hour flight from Berlin to Los Angeles.
Film was shot in ten days.
The painting covering the wall in Petra's apartment is a gigantic blowup of Nicolas Poussin's 1629 painting "Midas and Bacchus."
Even though she is one of the main characters, Marlene is the only character who doesn't have any lines in the entire movie.
Even if male characters are mentioned or described, like Petra's husband, Karin's lover, and Karin's husband, etc., throughout the whole movie no men are shown, only women.