Prototype 2 - Developer Message 5 : Hunt. Kill. Become | HD 720p

Game - Prototype 2
Publisher - Activision
Developer - Radical Entertainment
Platform - PC, 360, PS3
Release Date - 24 April 2012

Source
http://www.youtube.com/user/prototype

Left 4 Dead : Impulse 76 Short Film | HD 1080p

Source
http://www.youtube.com/user/AIRSOFTGIdotcom

Guild Wars 2 - Mesmer Skills Trailer | HD 1080p

Game - Guild Wars 2
Publisher - NCsoft
Developer - ArenaNet
Platform - PC
Release Date - TBA

Source
http://www.youtube.com/user/arenanetofficial

Battlefield 3 - TV Commercial Trailer | HD 1080p

Game - Battlefield 3
Publisher - Electronic Arts
Developer - EA Digital Illusions CE
Engine - Frostbite 2
Platform - PC, 360, PS3
Release Date - 25 October 2011

Source
http://www.youtube.com/user/freddiew