When Frank Walker and Casey Newton get into Frank's bath to escape the robots, Frank gets in on the left and Casey gets in on the right. They get shot off but when they land in the swamp, Frank is on the right and Casey is on the left.
When Casey enters the shop, the female store clerk is watching the TV. On top of the TV is a piece of memorabilia from The Iron Giant. The director of Tomorrowland, Brad Bird, also directed The Iron Giant.