Since the 1930s, media violence has appeared on screens of increasingly varying shapes and sizes. Violent content can now be seen in formats ranging from a gigantic IMAX movie to a tiny mobile smartphone game. Consuming violent content in these diverse forms has the potential to differentially shape audience responses. This entry presents a brief overview of screen size as a media technology variable. It then reviews research findings on the effects of screen size and concludes with theoretical considerations for media violence effects as a function of screen size.