In recent years, several studies have concluded that any aggression provoked by violent media is more than offset by decreases in violent crime that can be attributed to the same media. One study, in 2009, examined crime rates in the U.S. from 1996 to 2004. On the nights when theatre attendance for violent blockbuster movies, including “Hannibal” and “Spider-Man,” was high, rates of violent crime fell slightly, even in the six-hour period after midnight, when most movies had ended. Apparently, the people who were prone to violence were more likely to see a violent movie, and this kept them from committing crimes.