Margaret Cho’s comic flair drives `I’m the One That I Want’

At the end of “I’m the One That I Want,” Margaret Cho declares, “I’m gonna stay here and rock the mike until the next Korean-American, fag hag, shit starter, girl comic, trash talker comes up and takes my place!” Any takers? This film version of Cho’s savagely funny one-woman show is true to the tour she took on the road last year.