The US government added "Shrek" to the National Film Registry

Shrek can now claim to have something in common with Citizen Kane, Casablanca, Gone with the Wind, Snow White and the Seven Dwarfs, Singin' in the Rain, Vertigo, The Godfather, Lawrence of Arabia, and It's a Wonderful Life.

The 2001 Dreamworks Animation film has been added to the National Film Registry, an annual list of 25 films selected by the Librarian of Congress that have been deemed “culturally, historically or aesthetically significant.”

The films aren't selected because they represent the 'best' American films of all time, but rather because they are “works of enduring importance to American culture [and] reflect who we are as a people and as a nation.”

Here is the Library of Congress's reasoning for why they selected Shrek:

Among the 800 films that are now on the list, animation represents a pitifully tiny fraction of the works. The films include Who Framed Roger Rabbit-, Pinocchio, John Henry and the Inky-Poo, The Old Mill, Luxo Jr., Bambi, Steamboat Willie, Duck Amuck, What's Opera, Doc-, The Story of Menstruation, The Lion King, and Gerald McBoing-Boing, among a smattering of others.

While most of the animation works on the list are worthy of inclusion, they don't come close to representing the vital impact that animated film has made on American culture, a contribution that far exceeds the influence of many of the hundreds of live-action works that are included on the National Registry.