EXCLUSIVE: Christopher Nolan is readying his next film, and Deadline hears that like Dunkirk it will focus on a seminal moment in World War II. This one is J. Robert Oppenheimer’s role in the development of the atom bomb during WWII. Here is a bombshell development: While none of Nolan’s recent movies had gone outside Warner Bros, I’m hearing that several of the major studios across town are reading the screenplay and speaking with Nolan and his reps.