Director: Ava DuVernay Starring: David Oyelowo, Carmen Ejogo, Tom Wilkinson, Tim Roth, Giovanni Ribisi, Oprah Winfrey Written by: Paul Webb Running Time: 128 mins Cert: 12A Release date: 6th February 2015 Selma has already caused a stir as it was snubbed by the Academy Awards, receiving only a Best Picture nomination. Whatever the reason, it does…