Joaquin Phoenix’s departure from Todd Haynes‘ untitled gay romance movie has been branded a “nightmare” by one of the producers. The 49-year-old actor exited the project just days before the film was set to start shooting on location in Guadalajara, Mexico and the future of the movie is said to be in doubt as it reportedly hinged on Phoenix’s casting – now Christine Vachon – who works for Killer Films – has admitted it’s been a very difficult time. In a post on Facebook, she shared and article about the drama and wrote: “A version of this did happen. It has been a nightmare. If I haven’t been …