The same gentleman who edited all of the scenes from Uncharted into feature-length movies is at it again. He's just stitched together Assassin's Creed II, following the release (sort of) of Assassin's Creed back in November.
The editor is Andy Gilleand. You can watch the whole thing above (it should be obvious, if you have not played the game, this is a spoiler alert.) Of note, where Uncharted increased in length year-to-year, Assassin's Creed and its sequel are roughly the same length—which is still three hours. But it's a Saturday afternoon. You got something better to do?