Emily Blunt said that she gave "Oppenheimer" costar Robert Downey Jr. a heads up about director Christopher Nolan 's nuanced, British approach to giving positive reinforcement and affirmations.

Blunt stars as the titular character's wife Kitty Oppenheimer, while Damon, 52, takes on the role of Leslie Groves, a lieutenant general and U.S. Army Corps of Engineers officer.

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Emily Blunt's rep speaks out about Rebecca Ferguson's viral comments. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Emily Blunt said that she gave "Oppenheimer" costar Robert Downey Jr. a heads up about director Christopher Nolan 's nuanced, British approach to giving positive reinforcement and affirmations.

Emily Blunt was explaining how Christopher Nolan usually won’t tell actors when he’s super happy with a take, because “he’s very English.” As we all know, Robert Downey Jr. is all charisma.