IF YOU'RE a budding Scorsese or Spielberg—or simply a fan of beautiful women—we're about to put you in the filmmaking business: SI.com has a Swimsuit video mash-up feature that allows users to take online clips from each of the dozen 2008 Swimsuit photo shoots and edit them into a 45-second movie. You can cast up to four models (out of 18) per mash-up from more than 350 clips. Our editing software allows you to add one of five custom instrumental tracks—dance, country, funk, reggae and rock 'n' roll—as well as such transitional effects as fades, dissolves and wipes. The mash-ups can be embedded into your blog or MySpace account. Best of all, you'll be able to e-mail your friends the final product. A film starring Selita Ebanks, Marisa Miller, Daniella Sarahyba (above) and Jessica White? We're guessing that this is one movie guaranteed to get two thumbs up.