Kate Winslet paired a little black dress with flats and bare legs this morning when she left her London hotel. The actress has been jet-setting around the world to chat up the release of Titanic in 3D, which comes out on April 4. The director of her iconic film, James Cameron, sat out on recent promotional rounds in order to focus on another passion. James Cameron set a deep-sea record over the weekend when his specially commissioned submarine went almost seven miles under the Pacific Ocean. Kate Winslet's boyfriend Ned Rocknroll is currently with her in the UK, and may make an appearance at this evening's big UK premiere at Royal Albert Hall.