Also joining the cast are Hattie Morahan (Official Secrets), Simon Russell Beale (Mary Queen Of Scots), Paul Ritter (Chernobyl) and Mark Gatiss (Sherlock). Filming is set to start later this month in London and Spain.
Michelle Ashford (Masters of Sex) has adapted the screenplay based on the best-selling Ben McIntyre book of the same name.
Set in 1943, the film follows two brilliant intelligence officers, Ewen Montagu (Firth) and Charles Cholmondeley (Macfadyen) who conceived a plan that was dubbed Operation Mincemeat. They would trick the Nazis into thinking that Allied forces were planning to attack southern Europe by way of Greece rather than Sicily. Their plan was to get a corpse,