There's a message of collaboration, teamwork, leadership, and working toward the greater good. However there's also a borderline insensitive depiction of wild turkeys as being a lot like Native Americans.
Insults like "dumb," "son of a gun," "coward," "the anti-corn."
Some of the pizza boxes say "Chuck-E-Cheese"; there's an overt reference to Angry Birds, Old Navy, and Auntie Anne's.