Ubisoft has released the HD version in live and demo game Assassin's Creed: Revelations held the day before yesterday during their conference at E3. So you can finally enjoy the movie in high quality so as to assess better the graphics features. Beyond that was released a trailer focusing on multiplayer version of the game and in direct contact with the gameplay in Constantinople who had shown this morning. Find it all here.

Assassin's Creed: Revelations - E3 Gameplay | HD version
Assassin's Creed: Revelations - Multiplayer Trailer | HD version
Assassin's Creed: Revelations - Constantinople Gameplay | HD version