Cinematic trailers are everywhere in games marketing these days, so much so it's rare to see a title shown off for the first time any other way. As we become more familiar with them, though, we start to take them for granted.
Which is a bit of a shame, considering how much work actually goes into making one.
It's...a hell of a lot of work.
Oh, and if you were wondering about the music, and thinking if you'd heard it before, yeah, you probably have.