It runs at 1920x800/30 fps.
That means that the entire game will basically be in letterbox mode. The. Entire. Game.
inb4headaches
The developers are saying that they're going for a cinematic feel. What better way to get that than to literally make the game look like an interactive movie?
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I mean, the game already plays like a -blam!-ing movie instead of a game, so why the hell not?