Hidden clip
Select the "Scene Selection" option at the main menu. Highlight the option for chapters 1 to 4 at the bottom of the screen. Press [Up] to highlight the stitch that is between the scene selections. Press [Enter] to view a clip with Richard Matheson and the origins of Duel.
Animated eye
Highlight the "Languages" option at the main menu. Press [Left] to highlight the rope, then press [Enter]. The eye of the character from the movie will move around on the right side of the screen.