Stars turn out for 'What We Did On Our Holiday' premiere in London

Billy Connolly, David Tennant and Rosamund Pike attend London premiere; Connolly reflects on cancer battle. Holly Rubenstein reports. Credit to Reuters. FOR USE OF TRAILER FOR 'WHAT WE DID ON OUR HOLIDAY' - MUST COURTESY LIONSGATE WITH NO ARCHIVE, NO RESALE AND NO WIRELESS USE