“The Imitation Game” tells the story of British mathematician Alan Turing, the man who cracked Hitler’s Enigma Code in World War Two and invented the computer along the way. Considered one of this year’s Oscar favorites, this movie has already garnered numerous award nominations, including for Best Screenplay. Tom Tangney interviews screenwriter Graham Moore about his life-long fascination with this obscure and tortured genius. And actor Allen Leech (Downton Abbey), who plays one of Turing’s fellow cryptologists, tells Tom what he would have done if he’d been cast as Turing.