But which star is portraying which scientist and power player?
Find out with our guide to the cast and their respective characters below.
And you’re like, is this an offer?

Cillian Murphy in ‘Oppenheimer’ and the real J. Robert Oppenheimer.Universal Pictures, Bettmann Archive
It was so awesome."
“I was so blown away by the script,” theBournefranchise star said.
“It’s in the first person, which I’d never seen before.

Emily Blunt in ‘Oppenheimer’ and the real-life “Kitty” Oppenheimer.Melinda Sue Gordon/ Universal Pictures, CORBIS/Getty
So rather than say, ‘Oppenheimer crosses the room’ it says ‘I walk across the room.’
“I don’t know what those colors are.
Anyway, it’s a thing.

Matt Damon in ‘Oppenheimer’ and the real-life Gen. Leslie Groves.Universal Pictures, MPI/Getty
It’s kind of like being hypnotized.”
“Working with Florence was amazing,” said Nolan.
“[It was] a very tough role.

Robert Downey Jr. in ‘Oppenheimer’ and the real-life Lewis Strauss.Melinda Sue Gordon/ Universal Pictures, Pictorial Parade/Archive Photos/Getty Images
Very precise, the screen timeshort, but so important in Oppenheimer’s life.”
“I didn’t even think he would know who I was.
But he’s a very serious physics nerd, he knows a lot.

Florence Pugh in ‘Oppenheimer’ and the real-life Jean Tatlock.Universal Pictures; Library of Congress
“I was genuinely surprised with Jason Clarke,” Damon told EW.
It was great.”
Oppenheimeris in theaters now.

Tom Conti in ‘Oppenheimer’ and the real Albert Einstein.Melinda Sue Gordon/ Universal Pictures, Bettmann Archive
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David Dastmalchian and the real William Borden.Karwai Tang/WireImage, Bettmann Archive

Josh Hartnett in ‘Oppenheimer’ and the real-life Ernest Lawrence.Melinda Sue Gordon/ Universal Pictures, Smith Collection/Gado/Getty

Kenneth Branagh in ‘Oppenheimer’ and the real-life Niels Bohr.Melinda Sue Gordon/ Universal Pictures, Bettmann Archive

David Krumholtz in ‘Oppenheimer’ and the real-life Isidor Isaac Rabi.Universal Pictures/ Youtube, Corbis/Getty

Rami Malek in ‘Oppenheimer’ and the real-life David L. Hill.Melinda Sue Gordon/ Universal Pictures, Bettmann Archive

Benny Safdie in ‘Oppenheimer’ and the real-life Edward Teller.Universal Pictures/ Youtube, Bettmann Archive

Tony Goldwyn and real-life Gordon Gray.Dominik Bindl/WireImage, AP Photo

Jason Clarke in ‘Oppenheimer’ and real-life Roger Robb.Melinda Sue Gordon/ Universal Pictures, AP Photo/John Rous