Montage of Dog Clips:
On the second page of the 'Special Features' section within the 'Dog' menu layout, go all the way to the bottom to highlight the Dog Headquarters logo. Select it by pressing ENTER for a chance to see clips from the movie starring the dog.

Concept Art:
Start up the disc and select the 'Dogs' menu layout. Go to the 'Special Features' section and keep pressing the DOWN arrow key until a messenger tube is highlighted on the screen. Select it by pressing ENTER to reveal some concept art from the film.

Montage of Cat Clips:
On the second page of the 'Special Features' section, highlight the Cat Headquarters logo at the bottom of the screen. Select it by pressing ENTER. This will reveal clips from the movie starring the cat.

Mr. Tinkles’ Screen Tests:
When you start up the disc, select the 'Cats' menu layout and then access the 'Special Features' option. Keep pressing the DOWN arrow key until a spiked toy is highlighted on the screen. This will give you access to Mr. Tinkles’ screen tests for various infamous films.