Gary Oldman’s one acting pet peeve

Gary Oldman returns as Jackson Lamb for Season 6 of the hit spy thriller Slow Horses. The Oscar-winning actor joins Tom Power to talk about the secret to playing a crude, flatulent and brilliant MI5 agent — and why he’s relishing the chance to settle into a long-term role. He also shares the research behind some of his most iconic characters, from Commissioner Gordon in Batman Begins and George Smiley in Tinker Tailor Soldier Spy to Sirius Black in the Harry Potter franchise.