Question: Gemma Christina Arterton, is an English actress, she plays the lead role in which 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?
Sentence (from "Tom &amp; Gerri"): "Tom & Gerri" follows a difficult period in the life of Tom (Shearsmith), a primary school teacher and aspiring writer, and his girlfriend Gerri (Gemma Arterton), a struggling actress, after Tom invites the homeless Migg (Pemberton) into his home.
Relevant evidence: No