Due to unknown reasons, the WCM download links (even the premium ones) force you to DL a low quality version. PLease use external DL links for better quality.
The movie contains the first four (*cough* three) boss fights in icecrown citadel - lord Marrowgar, Lady Deathwhisper and Deathbringer Saurfang. There are few cutscenes from the Gunship battle, but well... I don't consider them a bossfight.
The Point of View is Resto Shaman, as you surely will notice - with a pretty messy UI.
Caspian - Malacoda
Caspian - Ghosts of the Garden City
If these trees could talk - From Roots to Needles
Tides from Nebula - Tragedy of Joseph Merrick
You will notice the music is only instrumental - rock / metal (generally heavier music). Don't like it - play your own, though I'd suggest trying it out.
As the movie is in pretty decent quality, I'd suggest downloading it or at least using the HQ stream if available.