Pot-pourri of films which revolves around gaming in a very broad sense.
The list includes films adapted from video games, related to board games, about world simulation, amusement park etc.
For an exhaustive list of video game adaption, see http://en.wikipedia.org/wiki/List_of_films_based_on_video_games
I’ll try to categorize them a bit better as the list grows.
This list is a selection but very tolerant :D Crazy suggestions welcome!