There’s what goes on in the film biz and then there’s what really goes on in Tinseltown. That’s what documentary filmmaker Marina Zenovich (director of last year’s “Lance,” about disgraced biker Lance Armstrong) was seeking to get at with her new film, “What Happens in Hollywood.”

The documentary, which is now available on Roku, shows women, and some men, speaking candidly about the sexism and misogyny that is absolutely baked into the film industry, and has been since its founding by a group of rich men a century ago.