Several decades of research have explored the links between exposure to violent entertainment media and subsequent aggression. However, there has been little research on the effects of exposure to images of real-life violence. In the present study, participants viewed either a video portraying acts of real violence, fictional violence, or a nonviolent video. After watching the video, mild aggressive behavior was assessed using the competitive reaction-time task. In 11 of the 17 preregistered measures, participants who viewed scenes of real-life violence exhibited lower levels of mild aggressive behavior compared to participants who viewed scenes of fictional violence from films and television shows. However, these effects were consistently small. The results suggest that exposure to images of real-life violence in the media may have a small inhibition effect on mild aggressive behavior in some contexts. (PsycInfo Database Record (c) 2023 APA, all rights reserved).