Ah, movies. To think that only a few decades ago, they were almost all black and white, and a few decades before that they didn't even have sound (except for maybe an in-theater piano-player, but he doesn't count), is, well, weird.
Movies pretty much are hundreds of thousands of pictures being played so fast they look like they're moving.
The genres for movies are pretty much the same as with books.
Look here for more about the movies.