The association of the attacks of 9/11 with Hollywood science fiction and disaster spectacle was immediate and pervasive. Succeeding calls in media and politics for the reassuring return of 'strong' masculine types - predominantly drawn from Hollywood westerns, action and war films - were widespread, revealing renewed cultural fears of threats to America from both within and without. 'Troubling Masculinities' is a multi-genre of representations of masculinity in encounters with terror in post-9/11 American cinema. The text examines the impact of 'terror-Others', from Arab terrorists to giant monsters, across a broad range of sub-genres-including disaster melodrama, monster movies, post-apocalyptic science fiction, discovered footage and 'home invasion' horror, action-thrillers and 'frontier' westerns.