Don't walk under a ladder. Don't break a mirror. And, for the love of gravy, avoid black cats at all costs.Today is Friday the 13th, a day to avoid anything and everything that might be considered unlucky. The date's bad-luck reputation stretches back centuries, but it really hit the masses in 1980 when the first " Friday the 13th " horror movie arrived in theaters. The film wasn't favorite of critics, but horror fans ate it up. The flick was a kind of cash-in response to the similarly plotted " Halloween ," which had come out a few years before. But over the years, thanks to sequels, reboots, crossovers, and more, Jason the hockey-mask-wearing killer, has become the stuff of legend. In honor of Friday the 13th (which happens about three times every year), we thought it high time to shine a spotlight on Ari Lehman, the little-known actor who played Jason Voorhees in the first film. Lehman has only a tiny role at the end of the film, but w...