The Demon Core
Reckless scientist Louis Slotin sacrifices his own life to save his colleagues during a criticality incident involving a plutonium core known as Rufus. While Slotin fights for his life against third-dimensional burns – his friends, colleagues, and family will stop at nothing to be at his side.
Top cast
Connor PaoloLouis Slotin
Greg FurmanRaemer Schreiber
Drew WatersLeslie Groves
Coby LarindeMarion Edward Cieslicki- Tara Alexandra BrownNurse Anna
Matt LintonTheodore Perlman
Manny SperoHaroutune Krikor Daghlian Jr.- Sam JacobsPhilip Morrison
- Henry HetzSamuel Allan Kline
- Warren DavisIsrael Slotin
- John AltonAlvin C. Graves
Ryan LucyBetty Wilson
Below are the streaming services currently carrying the movie “The Demon Core” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.
Where to watch The Demon Core in United Kingdom
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Not currently available on the supported providers in United Kingdom.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 24 Sept 2026.