![There’s no flashy Oppenheimer cameo, but this scientist helped start the disarmament movement in Canada](https://i.cbc.ca/1.6928396.1691179540!/cpImage/httpImage/image.jpg_gen/derivatives/16x9_460/rotblat-1957.jpg)
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Of all the scientists involved in the Manhattan Project, only one walked away from the plan to build a nuclear bomb. But you won’t hear the name Joseph Rotblat — or the story of how he brought the fight for nuclear disarmament to a small Nova Scotia village — in Christopher Nolan’s hit film Oppenheimer.