Slumdog Millionaire was a great film. But did you wonder what was up with all the spontaneous choreographed dancing? Welcome to the wonderful world of Bollywood, where popular Indian films and Top 40 songs are married into fast-paced, colorful dance productions reminiscent of Michael Jackson's "Thriller" (but with less groaning). And along with providing an excellent workout, the East Indian dance styles are wildly campy and just plain fun. More than a few Denver gals have become addicted ever since Bollywood West's Renu Kansal came to town from New York. Along with a regular slate of classes for all levels in Denver and Boulder, Kansal also leads the Bollywood West dance troupe, which made a splash last fall at the Denver Film Festival party for Slumdog Millionaire, co-hosts the occasional Passport to Bollywood dance party at Zen Ultra Lounge and helps promote Bollywood Movie Night screenings at the Regency Tamarac Square Cinemas. And, yes, that is our final answer.