Capping Phase I of his career, Kubrick wore multiple hats walking a tightrope between irreverent satire and nail-biting prescience for his icily brilliant Cold War comedy; he enlisted previous collaborator Sellers to ace multiple roles as the U.S. President, UK officer, and German scientist all caught up in a nuclear war countdown. Sellers earned his first Best Actor Oscar nomination, with the movie also receiving nods for Best Picture, Director, and Adapted Screenplay.