12 Jan 2017 - London - UK Sienna Miller & Ben Affleck are both seen here at The Chiltern Firehouse in London after earlier in the evening having dinner at Mayfair restaurant '34' and before that attending there Film Premier for 'Live By Night' Sara McDonald & Jamie Winston was also at The Chiltern Firehouse., Image: 310588048, License: Rights-managed, Restrictions: PLEASE CREDIT AS PER BYLINE *UK CLIENTS - PLEASE PIXELATE CHILDS FACE BEFORE PUBLICATION***UK CLIENTS MUST CALL PRIOR TO TV OR ONLINE USAGE PLEASE CALL 44 208 344 2007, Model Release: no, Credit line: Profimedia, Xposurephotos