Eight years later, McQuarrie co-wrote and co-produced "Valkyrie", which opened on December 25, 2008. The story is based on the real-life July 20, 1944 plot to assassinate Adolf Hitler. The script was co-written with Nathan Alexander. The pair had access to members of the Stauffenberg family as well as a book written by Fabian von Schlabrendorff – a conspirator who survived. While doing research for the screenplay, they also spoke with Hitler's bodyguard. The film stars Tom Cruise and is directed by Bryan Singer. It received two awards, the BMI Film Music Award and the Bambi Award for Courage. In 2009, McQuarrie was hired to pen the script for the then-untitled "The Wolverine".