To view the hidden scene from an episode of 'The Sopranos' when they are trying to watch The Godfather movie on DVD go to the 'Main Menu' of the bonus material disc and go to 'Galleries' then select 'DVD credits'. Keep pressing the 'Next' button through all the information until the scene starts.
At the 'Main Menu' of the bonus material disc select 'Set Up' and using your remote control press the 'Right' arrow key once and a globe will appear. Click enter to view a funny clip compiled from various scenes.
There is also a funny clip hidden in the Mario Puzo biography section on the bonus material disc. Look for a big Dollar mark that becomes visible when you search around.
At the 'Main Menu' of the bonus material disc go to the family-tree section and click first on Sonny and then on the photo of James Caan, then click on the second picture of Caan and you will be able to view footage of Caan's audition.