Peter Capaldi has revealed his role in The Ladykillers is so energetic it saved him from going to the gym.
The Thick Of It star plays criminal mastermind Professor Marcus in the new stage adaptation of the Ealing comedy at London's Gielgud Theatre.
Peter revealed: "It's quite exhausting. I have to have a shower afterwards because I'm always soaked.
"I've lost about half a stone. My wife gives me rice pudding after I come off stage because the weight seems to be dropping off."
Speaking at the after-party at London restaurant Spice Market, the Scottish actor said he was "very pleased" with the opening night - despite a door handle falling off by mistake during the performance.
"I was a bit nervous because it's always a slightly different feeling when it's a first night. But it went very well. It's a wonderful cast and everyone rose to the occasion."
Comedians Rob Brydon and Peter Serafinowicz were among the stars in the audience for the show's opening night.
Ben Miller, James Fleet and Marcia Warren also feature in the show, which was adapted for the stage by The IT Crowd writer Graham Linehan and has just moved to the West End after a run in Liverpool.
Rob Brydon gave the show a thumbs-up, saying: "I loved it."
"Peter Capaldi gave a superb performance. I imagine he'll be winning awards for that," the Welsh comic added.