In 1982, a low-budget movie about a group of high school kids featuring a cast of unknowns emerged as a sleeper hit, racking up $100 million at the box office and spawning two sequels. In 2006, a low-budget movie about a group of high school kids featuring a cast of unknowns debuted on The Disney Channel and emerged as a sleeper hit, racking up millions in merchandising revenues and spawning two sequels. But while they may sound similar in the abstract, can you imagine any two movies more different than the relentlessly filthy Porky's and the promiscuously clean and perky High School Musical? With High School Musical 3 about to hit theaters, we thought it was time to compare the two franchises and determine...