Review: New Broadway-Bound Musical Opens in San FranciscoAbout a third or half way through Act One, the new musical Legally Blonde, now trying out at the Golden Gate Theatre, looks and sounds like a solid musical comedy hit. Based upon the novel and the movie, the show delivers three winning numbers – "What you Want," with a strong popular hook; a rousing "The Harvard Variations" and the cold-hearted lawyerly anthem, "Blood in the Water." And in sensibility and development, it resembles "How To Succeed. In Business Without Really Trying." Can it be this good a show?Well, maybe -- with a lot more work. Blond fritters away its early promise by splintering off into extraneous subplots and character cameos that are more issue-driven (all about women empowering themselves) than dramatically relevant....