A brand-new trailer has been released for an upcoming WWII film rooted in a remarkable true story . Pressure centres on the Allied Forces during the 72 hours preceding D-Day as they gear up for one of the most pivotal military operations of WWII, with the aim of turning the tide of the conflict, reports the Express . Britain's chief meteorological officer James Stagg (portrayed by Andrew Scott) is called upon to deliver the most crucial forecast in history. His involvement brings him into