A supremely watchable documentary-tribute to the exploitation king Roger Corman. Cheerfully turning out low-budget shlockbusters, Corman emerges as the very incarnation of never-say-die American entrepreneurialism and capitalism, celebrating naughtiness, absurdity and fun. In the process, he has given a career start and an invaluable real-world film education to the likes of Jack Nicholson, Peter Bogdanovich, Joe Dante, Ron Howard and Martin Scorsese. For film theorists, his anarchic movies such as The Terror (1963) – which he put together just because he happened to have a creepy-looking set which he couldn't bear to go to waste – are exercises in pure, narrative-less cinema, a series of wacky effects and explosions and stabbings and screams. And yet his anti-racism movie The Intruder (1962) was challenging and courageous; it was precisely because Corman was not encumbered with middlebrow good taste that he was able to make it. The mainstream cinema industry was stuffed with well-meaning liberals who theoretically might have wished to make such a film, but only Corman had the can-do attitude. His teensploitation movies powered the 70s New Wave, inspiring Easy Rider, Jaws and Star Wars. Corman himself never quite graduated to their mega-star level, perhaps because he never wanted to concede control to corporate America and simply because anarchy was and is his vocation.