What's wrong with an A-list actress and new mum dressing sexily? During the promotional tour for Barbie, its lead actress Margot Robbie made red-carpet dressing into a genuine art form with looks that doffed their cap to the original Mattel doll. And seemingly, she's started as she means to go on. Promoting her latest film A Big Bold Beautiful Journey, the Australian actress has made a serious impact at premières with some striking outfits.