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In the acclaimed 2012 film "The Dark Knight Rises," Aidan Gillen portrays a CIA operative named Bill Wilson, who becomes entangled in the intricate plot involving the enigmatic villain Bane and his scheme to plunge Gotham City into chaos. Gillen's character plays a pivotal role in the film's narrative, providing crucial assistance to Batman as he strives to restore order and protect the city from Bane's devastating plans.