Question: Gemma Arterton played the lead role in what movie based on the 2009 novel "Their Finest Hour and a Half"?
Sentence (from "Their Finest"): Their Finest is a 2016 British war comedy-drama film directed by Lone Scherfig and written by Gaby Chiappe, based on the 2009 novel "Their Finest Hour and a Half" by Lissa Evans.
Relevant evidence: Yes