Michael Hiltzik: ‘Oppenheimer’ is a great movie, but it commits these historical blunders

“Oppenheimer” has been justly praised for its attempt at historical fidelity in telling the life story of the brilliant, agonized physicist, but it’s not a documentary.

The movie gets most things right about Oppenheimer’s role in the Manhattan Project, the government effort to build the atomic bomb, as one would expect given that filmmaker Christopher Nolan based it on “American Prometheus,” the superb 2005 biography of J. Robert Oppenheimer by Kai Bird and Martin J. Sherwin.

But artistic imperatives and Nolan’s understandable choice to tell his story from Oppenheimer’s point of view led him to perpetuate a few myths about the making of the atomic bomb and to gloss over aspects of the story that may be interesting for lay viewers.

Based on what I gleaned about Oppenheimer and the project from researching my 2015 biography of Berkeley physicist Ernest O. Lawrence (played in the movie by Josh Hartnett), “Big Science,” I’ll try to correct the Hollywood record and fill in the gaps.

Let’s jump in.

For the most part, Nolan sticks to the facts. “Oppenheimer” is notable among biopics for portraying real people doing the things they did at the time. Even peripheral characters who flit