Why would you taunt us like this? To be fair, two of these are actually in various stages of productions right now. But that doesn't mean they'll see the light of day.
While I'm not entirely sure where Joey from Geek Tyrant got this collection of wicked fan posters, they definitely make me long for more (re: any) quality game to movie adaptations.
Also, if you know who Photoshopped any of these posters, let me know in the comments so I can give credit where it's due! (UPDATE! Thanks to RoboPanda I've been able to credit all images.)