The July 20, 2012, Aurora, Colorado, cinema shootings of more than 70 people (58 injured and 12 killed) by a 24-year-old man, James Egan Holmes, at a late-night screening of the new Batman film The Dark Knight Rises shocked people around the world. As with similar mass shootings, it raised questions about the link between violence in the media and violent behavior, and whether an international public health response involving parents, professionals, the media, and policy makers is needed to reduce the effects of media violence on children’s and young adults’ thoughts and behavior.