Former Bond girl Gemma Arterton is set to star Their Finest Hour and a Half, a new romantic comedy being directed by Lone Scherfig (The Riot Club, One Day). Announced Tuesday, the film will also star Bill Nighy and Sam Claflin and is being developed and co-financed by BBC Films, with Number 9 Films and Wildgaze Films, led by Stephen Woolley and Amanda Posey, producing. Christine Langan and Ed Wethered of BBC Films will executive produce.