Movies are getting deadlier – at least in terms of their dialogue. A new study analyzing over 166,000 English-language films has revealed a disturbing trend: characters are talking about murder and killing more frequently than ever before.

Researchers examined movies spanning five decades, from 1970 to 2020, to track how often characters used words related to murder and killing. What they found was a clear upward trajectory that mirrors previous findings about increasing visual violence in films.

By applying sophisticated natural language processing techniques, the team calculated the percentage of “murderous verbs” – variations of words like “kill” and “murder” – compared to the total number of verbs used in movie dialogue.

Lead author Babak Fotouhi explains, “Our findings suggest that references to killing and murder in movie dialogue not only occur far more frequently than in real life but are also increasing over time.”

This rising tide of violent speech wasn’t confined to obvious genres like action or thriller films. Even movies not centered on crime showed a measurable uptick in murder-related dialogue over the 50-year period studied. This suggests that casual discussion of lethal violence has become more normalized across all types of movies. This potentially contributes to what researchers call “mean world syndrome” – where heavy media consumption leads people to view the world as more dangerous and threatening than it actually is.

What makes this new study particularly noteworthy is its massive scale – examining dialogue from more than 166,000 films provides a much more comprehensive picture than earlier studies that looked at smaller samples.

One researcher warned, “The evidence suggests that it is highly unlikely we’ve reached a tipping point.” Research has demonstrated that exposure to media violence can influence aggressive behavior and mental health. This can manifest in various ways, from imitation to a desensitization toward violence.