British actor and comedian Steve Coogan is all set to channel his inner Peter Sellers. The “Alan Partridge” star will play multiple roles as the lead in the London stage version of Stanley Kubrick’s 1964 political satire film “Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb,” being adapted by “Veep” creator Armando Iannucci. In the film, where Peter Sellers plays several roles, an insane American general orders a bombing attack on the Soviet Union, triggering a path to nuclear holocaust that a war room full of politicians and generals frantically tries to stop. It was...