A good parody is hard to spin beyond the here and now. Take "Weird Al" Yankovic, for example. The pop-music jokester has put out 11 regular albums since 1983, when the accordian-playing nice guy's spoof of The Knack's "My Sharona" (titled "My Bologna" and recorded in the men's room of his college radio station) started his career as a musician, comedic icon and food fetishist when it blew up on The Dr. Demento Show. However, every hilarious and unforgettable cut like "Eat It", "Like A Surgeon" and "Smells Like Nirvana" that hit was matched by fade-away tracks like the New Kids jape "The White Stuff" (an ode to Oreos), the Rocky III goof "Theme From Rocky XIII (The Rye Or The Kaiser)" or the misjudgment "Taco Grande" (a riff on Latin rough-boy Gerardo's only hit, "Rico Suave"). The secret to a successful parody is complex, involving a careful balance of picking a song that is big enough, worthy of a good-natured dressing down and most important, funny. The same is true with movies, and the latest in the popular Scary Movie series is a great example of what can go right and wrong with such an attempt.