In UP!, you only see the nursery for a few seconds, as part of the Carl and Ellie montage. It’s such a short scene that I didn’t even recognize this mural, so it was nice to be able to stand in front of it and really appreciate how adorable it is!
The designers did take a few liberties with this room, to fill in the blanks. The baby mobile is made up of tiny blimps and Dug is hanging out in the crib (the only Dug I saw in the house).