Alongside all the other functions of movie theaters over the past century, in Mexico City men have used them as sexual spaces. A few cinemas like the Cine Teresa became notorious as sites in which men could find male sex partners. Yet even there, behaviors of and narratives by men who had sex with men mirrored those by men who had sex with women. This article focuses on the history of masculine sexuality in Mexico City movie houses from 1920 to 2010. The presence of women in these houses, either as workers, on the screen, or in men’s memories, along with the presence of men who went there to watch heterosexual sex on the movie screen, suggests that moviegoing in Mexico City can be analyzed through the lens of gender history as much as through that of the history of sexuality. Despite major social, cultural and technological changes over the twentieth century, examining movie audiences in terms of the histories of sexuality and gender reveals a startling amount of continuity in movie theaters as spaces of male sexuality.