Margaret O'Brien -- "Journey for Margaret," "Meet Me in St Louis," "Our Vines Have Tender Grapes" -- was one of the biggest stars of her time. But Hollywood didn't believe that a delightful, spunky, preternaturally talented child actor could make it as an adult. But O'Brien, who turns 75 on January 15, is still as smart, fun, and youthful (she wears diamonds in her nose piercing!) as she ever was. Off-Ramp host John Rabe spoke with her at the annual holiday banquet of the Southern California Motion Picture Council, one of O'Brien's favorite causes.