Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: What does Marvin realize he needs to do to make his movie? Movie plot title: Mistress Movie plot: A down-and-out Hollywood screenwriter and director named Marvin Landisman (Robert Wuhl) is working on cheaply made instructional videos when his years-old script is read by Jack Roth (Martin Landau), a desperate has-been producer who offers to help Marvin find investors for his movie. Men willing to put up the money are found, including the ruthless businessman Evan (Robert De Niro), the disturbed war veteran Carmine (Danny Aiello) and the eccentric millionaire George (Eli Wallach). But each has a mistress he insists be cast in the film in exchange for his financial backing. The women are the highly talented Beverly (Sheryl Lee Ralph), the alcoholic flight attendant Patricia (Jean Smart) and the perky blonde Peggy (Tuesday Knight). Marvin repeatedly is asked to compromise his standards and change his script to accommodate these backers until the script becomes almost unrecognizable from its original form. The project also puts a strain on the marriage of Marvin and his long-patient wife Rachel (Laurie Metcalf). Marvin's screenplay is a bleak one about a painter who commits suicide, and was inspired by the case of an actor named Warren (Christopher Walken) who abruptly committed suicide by jumping off a building in the midst of the making of a film Marvin was directing years ago. Roth brings in young Stuart Stratland (Jace Alexander) to adapt the script for the investors' mistresses, but not only does Stuart constantly enrage Marvin with his suggested changes, he falls in love with Peggy and they have an affair. When Marvin's wife demands he grow up and move with her to New York, where she is opening a restaurant, he breaks up with her instead, giving his loyalty to a film that, as she puts it, nobody wants to see. On the verge of signing contracts, everything falls apart, when Beverly discovers that the role she expected to play has been drastically reduced in Peggy's favor. Marvin is left alone, a broken man, done with Hollywood for good. Or at least until the next time Jack Roth gets in touch.
The answer to this question is:
Compromise his standards and change his script.