In shades and a dark cardigan, Rihanna steps out to a London nightclub. Plus: Katie & Suri, Channing Tatum, Jennifer Aniston and more


G.I. Joe: The Rise of Cobra stars Sienna Miller and newlywed Channing Tatum promote their new film across the pond on Wednesday, posing in front of London's famed Tower Bridge aboard the HMS Belfast. The duo's action thriller hits theaters on Aug. 7.