WoW first page is filled with completely retarded comments.
In the video the action bar has the bars stacked up and not removed like standard live action bar.
in live the action bars go:
Bar 2 Bar 3
Bar 1 System Menu
In the video it is just
Bar 2
Bar 1
The system menu and stuff are NOT on the second half of the screen, they're outside of the main bar. that is so obvious you don't even need to turn on your brain to notice it, just need to not be a complete retard