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  • https://doi.org/10.1017/ipo.2026.10088Copy DOI Icon

Oppenheimer and public support for arms control negotiations

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Abstract

Abstract Numerous experts and activists placed hope in Christopher Nolan's Oppenheimer to reignite the conversation of nuclear disarmament and arms control. However, evidence on the persuasive effects on popular media is mixed, and studies estimating such causal effects are scarce. We draw on narrative persuasion literature to underpin the disarmament and arms control communities’ expectations of the Oppenheimer movie's impact with regards to various dimensions of nuclear disarmament and arms control. Leveraging nationally representative survey data from Italy both before and after the movie's release, we first show that younger respondents, men, and those with higher education were more likely to see the movie. Using inverse probability weighting, propensity score matching, and difference-in-difference methods, we then correct for these biases and find qualified evidence that watching the movie increased support for nuclear arms control. At the same time, the movie did not move attitudes towards unilateral nuclear disarmament, opposition to proliferation, or opposition to nuclear weapons use. Beyond sparking the conversation about the dangers of nuclear weapons, the movie did not appear to have shifted public attitudes in the direction of broader disarmament goals. Our findings not only shed light on the persuasive effects of the Oppenheimer movie and popular media more broadly, but further contribute to our understanding of public views regarding nuclear disarmament and arms control.

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