[dredmorbius]

Movies do things for visual impact.

And audio impact.

They're not reporting fact. They're weaving a fantasy.

Whatever your field is, if you want to got stark raving mad, watch a movie made about it.

At the very least, the people writing, acting, and directing your world have little or no idea of what it's really like. And even if they do, they're taking deliberate liberties to embellish or interpret the realm to make it more telegenic.

An interesting exception: movies looking in on themselves -- at movies, TV, and entertainment. There's frequently embellishment, still (people and events are more glamorous / beautiful / hip than they are in reality), but there's often a lot of real insight.

[groby_b]

There's real insight whenever movies talk about people.

Best example in a field I'm familiar with - "Strictly Ballroom". Sure, everybody was over the top, but anybody who was ever involved in competitive ballroom dancing will recognize all the archetypes and be able to relate to the various things said about dancers.

For some reason, it's easier to swallow that characters are exaggerated, instead of facts. (This being HN, I fully expect a reply within the next 15 minutes explaining the exact psychological effect, complete with links to relevant papers ;)