The chameleonic star had dazzled for decades in an endless string of films — “Sid and Nancy,” “State of Grace,” “True Romance,” “Leon: The Professional,” “The Contender,” “Hannibal,” etc. — until 2011, when his work was finally recognized by the Motion Picture Academy. It wasn’t one of his trademark Baroque performances that got the call, but rather, his icy cool portrait of a British intelligence operative in Tomas Alfredson’s “Tinker Tailor Soldier Spy.” The man has nothing if not range, and that range now extends to Sir Winston Churchill, about as larger-than-life as it gets.
In Joe Wright’s World War II drama “Darkest Hour,” which unspooled at the Telluride Film Festival Friday, Oldman’s showcase might be his finest hour. He digs into the towering role with uncanny resolve, fearless under gobs of makeup,