Stanley Kubrick’s “Dr. Strangelove,” released in 1964, still stands as one of the best war satires of all time. This is a documentary, produced in 2001, about the making of that landmark film, including stories about stars Peter Sellers, George C. Scott, Slim Pickens, and Sterling Hayden. It also details Kubrick’s attempts to thwart the release of the similarly-themed-but-much-more-serious “Fail Safe.”