Video games can have a stronger influence than movies on risk-taking behavior

This is true. Now this isn't to say all video games are bad, per se, because they certainly aren't. As a matter of fact, a 2013 study concluded that playing the *right* video games could be surprisingly beneficial to children/teens.

On the other hand, this isn't to say that violence doesn't occur in movies because it certainly does. As opposed to movies, however, video games are proven to have many negative effects on one's brain [development] and judgment. Just a few of these effects include lack of sleep, poor decision-making, loss of brain cells, troubles with vision and issues with memory.

You also have to keep in mind that you're much more likely to be addicted to video games than you are movies. You most likely wouldn't [want to] watch movies for hours at a time. Video games, on the other hand, have been proven (and are often made) to be addictive.

either two or three