I don’t know about you, but the best thing I saw on TV over the Labor Day weekend — the most dramatic, the most exciting, and the most unpredictable — was 17-year-old Melanie Oudin at the U.S. Open. Over the past week, the 5′ 6″ blonde firecracker from Marietta, Georgia, has become the little engine that could, with stars like Nicole Kidman and Keith Urban turning out to cheer her on. Oudin, who is ranked 70th in the world (for now), entered this year’s tournament unseeded. And so far, she’s knocked off No. 4 Elena Dementieva, No. 29 Maria Sharapova, and on Monday, No. 13 Nadia Petrova, in a three-set come-from-behind barnburner. With her grunting groundstrokes, fist-pumping enthusiasm, cute-as-a-button smile, and Cinderella storyline, it’s really only a matter of time before Oudin’s run in Flushing is turned into a made-for-TV movie. So before her big quarterfinals match on Wednesday (you better tune in!), let’s get the watercooler casting process going. Who should play America’s newest sweetheart in the inevitable biopic? Ten years ago, I would have said Jennie Garth. But now I’m thinking Kate Bosworth. Who do you think should play her?