Cops and Robbers

A pair of FBI agents set up a bogus movie production as part of an unlikely sting operation to snare a mob kingpin. They buy the worst script in Hollywood and hire a failed movie producer whose career is on the skids; a third-rate aging actress whose claim to fame is having performed Shakespeare. on a cruise ship; an amphetamine-enhanced screenwriter; a hooker; a Yiddish-speaking accountant; a black, flaming gay actor; and a Native American actor who insists on dressing like an Old West dime store Indian.
However, throughout the course of the film, the mobsters and one of the FBI agents become so enamored by the glitter and glamour of Hollywood that they actually end up working together to try to make the movie a success. Our hero is a hitman in search of the redemption he doesn't believe he deserves. He realizes the fake film was never meant to be produced and develops a conscience believing it's wrong to allow the innocent actors and film crew to spend months of their lives working on a movie no one will ever see, despite the delusions of everyone else involved.
Knowing their hopes and dreams will be dashed, our hero sets about trying to do the right thing.