Curious George (2006)

S5E9 Monkey Size Me

It’s the Man with the Yellow Hat’s birthday, and George is eager to organize a surprise celebration. The Doorman advises him on the essentials for a successful party, including cake, decorations, and guests. However, George mistakenly selects items in the wrong sizes, resulting in chaos. Later, he dreams of a world where everything is monkey-sized, prompting him to realize that in a human-sized environment, it all comes down to accurate measurements to achieve the proper proportions.