Question:  John Mathieson, BSC is one of a group of film makers who emerged from the music video industry whose peers include the director of  a 2007 British romantic war drama that chronicles a crime and its consequences over the course of how many decades? 
Sentence (from "List of accolades received by Atonement (film)"): Christopher Hampton adapted the screenplay from the eponymous novel by Ian McEwan.
Relevant evidence: No