There is a moment in Oppenheimer where the screen goes silent. Not quiet — silent. The Trinity test has just detonated and Christopher Nolan withholds sound for a few seconds before the shockwave hits. In that gap, you understand everything the film has been building toward, and everything it fears.
Nolan has spent a career making films about the weight of consequence. Here, consequence has the mass of a collapsed star. J. Robert Oppenheimer built the weapon that ended one war and began another kind entirely — a war of anxiety that has not ended, and will not end in any of our lifetimes. The film knows this. It does not let you forget it.
Cillian Murphy carries the film with a stillness that is almost eerie. Oppenheimer is a man of towering intellect and almost no self-knowledge — he understands the physics of nuclear fission better than any person alive, and understands himself barely at all. Murphy plays this without making it a flaw. It is simply how this man is wired. The Bhagavad Gita quote — "Now I am become Death, the destroyer of worlds" — arrives in the film not as triumph but as reckoning. Murphy's face in that moment is the whole film in miniature.
Robert Downey Jr. deserved every award that came his way. Lewis Strauss is the film's true antagonist — petty, procedural, vindictive in the particular way that bureaucrats are vindictive — and Downey plays him without a single wasted gesture. The hearing sequences are as taut as any thriller Nolan has made.
Three hours. Not one of them wasted.