On the DVD's "Main Menu" highlight the 'Play Movie' menu entry and then press your Up button to highlight the Lions Gate logo. This will give you access to trailers for Secretary and Hit Me.
The second Easter Egg on the disc is found in the "Audio Setup" menu. Go there and then press your Up button until the ant at the top of the logo is highlighted. Now press your Enter button and you will get to see an advertisement for the Secretary screenplay.
All easter eggs were generously submitted by SirDonk