I was made aware of this through a reddit post: we can nominate movies to be preserved in the National Film Registry, and we should nominate some Dreamworks movies. Shrek is already in it. The criteria is that the nominations must be at least 10 years old and an American film. With this in mind, I think we should nominate the following movies to be preserved in the registry:
The Prince of Egypt
Chicken Run
Kung Fu Panda
How to Train Your Dragon
You can nominate up to 50 movies at this submission form. Deadline is August 15. The Library of Congress also has a list of notable movies that haven't been preserved in the registry yet, which includes other Dreamworks movies you could nominate:
(Also feel free to add in the tags or notes whether I should still keep running the Dreamworks Tournament separate from the Illumination Tournament in the coming years)