6. Sylvester Stallone

The Party At Kitty And StudsRocky, Rambo, Spy Kids 3-D: Game Over Producer-writer-director powerhouse Morgan Lewis (whose lack of Wikipedia entry makes him even more of a recluse than Terrence Mallick) probably thought his porn film The Party At Kitty And Studs would be forgotten as soon as the credits rolled, but he didn't bank on the films star (who had to endure a whopping two-day shoot) becoming an Academy-Award nominated star a few years later. That Sly Stallone began his career in porn is a popular is-it-isnt-it true story that has only grown in notoriety over recent years. The truth of the matter is that when sleeping on the New York streets Stallone did one soft-core film to generate some much-needed money. When Rocky hit big the film was re-released under the title Italian Stallion, marketed as an audience-friendly version of hardcore film - a falsity furthered by a cut turning up with non-Stallone penetration; it was never explicit. So it may not be as raunchy as some of the other career turns on this list, but for sheer notoriety it earns its place.