Killzone 2 has never lacked in the pre-rendered department. Heck, the game's most famous (or is that: infamous?) for its unbelievable visual razzle-dazzle. All smoke and mirrors or not, this is the official intro cinematic that's included in the game. Pre-rendered, in-engine, whatever -- it's definitely not playable. So sit back, dim the lights, and enjoy.
[Warning: Video contains some rough language and a few kabooms. Plug in your earphones if the boss is nearby.]