La familia del futuro

The parts of Lewis and Wilbur had to be recast when the original actors' voices broke.

When the Bowler Hat Guy is trying to pass off the memory scanner as his own, he is seen carrying the memory scanner in the box right side up, and then after the introduction is seen taking the box off the top, but in order to do that, either the box would have had to have been turned upside down, or the bottom would have had to been loose, in which case the memory scanner would have fallen out.

In the 3D version, most of the closing credits are in 2D; however, the credits for the people who created the 3D version are in 3D.

In the U.S. version, Wilbur tells Lewis that his father, Cornelius, looks like Tom Selleck, who happens to be the voice-actor. In the German version, Wilbur says his father looks like Thomas Gottschalk, who happens to be the voice-actor in this version. In the Latin American version, Wilbur says his father looks like José Luis Rodríguez "El Puma". In the Italian version, Wilbur says his father looks like Giovanni Muciaccia, the Italian Art Attack presenter, who is his voice-actor in this version. In the Spanish version, Wilbur says his father looks like Raphael. In the Japanese version, Wilbur says his father looks like Kazuhiko Inoue .

Edited into Zenimation: Cityscapes (2020)