is showing superior graphics in E3 and Demos legal?

[Bofferbrauer2]

Bullshots are perfectly legal. 20 years ago those would have been a huge risk for the company creating them due to backlash from gamers and gaming journalists alike (just look up Outpost or Command and Conquer: Tiberium Sun and how it turned out for them), but ever since the infamous Killzone 2 trailer, it seems like the publishers felt that the backlash is weaker than the cash the fake trailers generates in sales. Though if they do it too often or too obviously, then it still may backfire on them, especially on the long run when the lost trust of the more seasoned players generates a lower baseline for the sales.