Why cinema is harmful to us.
Answers
Cinema (in terms of movies/videos) could be harmful to humans because, it can make people think differently or become stereotypical.
The reason is quite simple, when you are watching a movie, your brain could see the movie as something truthful. Movies and videos have the creative commons license, so they are allowed to make things up that may or may not be truthful. The way that this could be harmful to humans is that it changes our brains to believe what may not be true. For example if on a doctor movie or hospital movie, they may show the viewer the operation. Your brain then assumes that what they are doing is the correct way to do it, just remember that these are actors and not real doctors. So because of what you saw, if you tried to replicate that in an attempt to save their life, then you run the risk of it being untruthful and instead harming them.
So cinema/movies/videos can be harmful due to the way that it changes the way people think in terms of what is true and what is made up.