Hidden sequences
Select the "Special Features" option at the main menu, then select "Visual Effects". Select either the "How a Patriot Loses his Head" or "Recreating a Digital Army" option. When you enter either of those two options and play it, you will notice that there are three different sections on the screen playing footage. Press [Left], [Right], [Up], or [Down] to see small yellow arrows appearing in all different sections that are playing footage. You will have to toggle a bit to find them all. Each arrow will tell you something different when you selected.