Dug In The Toy Story 4 Poster
In the background of one of the Toy Story 4 posters, you can see a painting hanging on the wall that is a spoof of the painting "A Friend In Need" (1903) from the Dogs Playing Poker series by Cassius Marcellus Coolidge. In this painting, you can see Dug, Charles Muntz, and the other dogs from the Pixar film Up (2010).