If you missed comedian Margaret Cho's 2000 film I'M THE ONE THAT I WANT, or never had the pleasure of catching one of Ms. Cho's live shows, you might wonder at the adulation expressed by audiences as they stream into the Seattle's Paramount Theater at the start of her latest concert film. By the end, it should be perfectly clear just why Cho is so loved by so many different types of people. Raunchy though her material is, it embraces all comers, regardless of gender, sexuality, race or ethnicity. And it's never been sharper — or funnier — than it is here. Cho talks about the lack of Asian-American role models in the entertainment biz (growing up, success for Cho mean...