International reconsideration of Mexican film noir is a recent phenomenon. For decades, Mexican film criticism tended to dismiss the importance of this tradition and even to deny its existence, often citing the presence of melodramatic elements in would-be noir films and the lack of a crime novel tradition for screen adaptations. By comparing two Mexican films to similar American productions and examining the local political and economic conditions of the former, this article argues that Mexican film noir had its own pessimistic viewpoints, which were borrowed from journalism and the illustrated press. These viewpoints were based on existing social ailments and delivered relevant criticism of the institutions, classism, and sexual norms of the postrevolutionary Mexican state of the 1940s and 1950s.