Turns out Crysis 2′s E3 trailer was real-time rendered PC footage.
Crytek Staff: “After being here a few months now, it is clear to me that it’s everyone at Crytek’s intention to make Crysis 2 and CryENGINE 3 the very best they can be on ALL supported platforms.
Here is some Crysis 2 footage rendered in realtime on a PC:



