6. Sylvester Stallone

The Party At Kitty And StudsRocky, 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 Studs would be forgotten as soon as the credits rolled, but he didn't bank on the films 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-isnt-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.