At the Main Menu, go to the 'Special Features' section. Once there, press the 'Right' arrow key to highlight the ice pick icon on the screen. Press 'Enter' once and you will get the chance to see the rehearsal footage of Sharon Stone, including Lie Detector scenes and the Interrogation, as well as a some other ones.
At the 'Setup' menu, press the 'Right' arrow key twice to highlight the ice pick on this screen, and then press 'Enter'. This will playback some rehearsal footage of Jeanne Tripplehorn.
At the 'Setup' menu, select the 'JVC' logo near the bottom will give you the chance to see a commercial for JVC products.
All easter eggs were generously submitted by dachen