Lord of the Rings: The Fellowship of the Ring (Extended Edition) Easter Egg - The Two Towers Secret Trailer

Put in Disc 2 of the Extended Edition.

Go to scene selection and press enter on the right where it says 48.

When the menu for scene 48 pops up, keep scene 48 highlighted.

Hit down and a hidden image of the two towers should be highlighted.

Press enter and Peter Jackson will introduce the secret Two Towers Trailer.