Disc 2: Go to the 'Director's Notebook' section. There, select the menu entry 'Notes And Sketches.' On the first screen of these notes, following the instruction screen, press the 'Up' arrow key on your remote control. This will highlight a page that is sticking out from the right-hand page. Now press 'Enter' to see that page. Press 'Enter' again to return to the regular pages..
As you go through the notebook, you'll come across a page with a drawing of the fig tree shaped like Pan's horns - it is the 8th screen in case you want to count them. Press the 'Down' arrow key on your remote control to highlight another page that is sticking out from the right-hand page. Press 'Enter' now to see that page as well.
All easter eggs were generously submitted by SirDonk