Elysium as a shooter. I mean the film I love, fantastic design and world created. Yet I think they could have done more with a game of it, like extend the narrative, give the main space station more scenes. The idea would be it's game where the further you get in the game the weaker you become so that is the difficulty curve.

Vietnam war.. While Battlefield Bad Company 2: Vietnam, and CoD Black Ops had their moments I still think a company can make the ultimate vietnam game with lots of vegitation, traps, airstrikes etc.. a far cry/crysis like game

They should make a game based on those silent hill movies. They were creepy.

Edge of Tomorrow I guess. It's pretty much Day Z but with aliens and no PvP.

Well they did Bladestorm: The Hundred Years War, based on, well, the actual Hundred Years War, plus Warriors: Legends of Troy based on the Trojan Wars, and Dynasty Warriors and Samurai Warriors are both based on actual historical conflicts, so I'd say they're already pretty well covered :)

An open-world Back to the Future game where you could drive the DeLorean freely and travel in time to do missions. =P

Clockwork Orange would make a very interesting game.

A puzzle/adventure game based on BBC's Sherlock could be interesting if done properly. Quantic Dream might be the obvious choice, but I think another developer could make it better. Remedy, maybe.

Fight Club, as an open world massive RPG with multiple cities, and a multiplayer element which had your 'alternate' identity played by a total stranger online. Project Mayhem would be hilariously awesome and creative, and the fighting could be a killer element if done correctly. Make it rated M and keep it incredibly dark and funny.

Yes, but probably nobody would know this game even existed. Why?

Because the first rule of the fight club is ...NOT talking about the fight club! (ba dum tas)