Factual error: When the minions are attempting to purchase tickets to get in to see/steal the crown, the admission prices on the wall are priced as £s and pence (decimal currency). As this was 1968, Britain was still using pre-decimal pounds, shillings and pence.
Factual error: The main character from the video game "Paperboy" is among the alien invaders in the final battle; since that game was first released in 1984, he shouldn't be there, because the probe the aliens received featuring video game footage was launched into space in 1982.
Factual error: Spongebob and Plankton are told to supervise the universe for Bubbles while he goes on a bathroom break, this result in Jupiter and Saturn colliding with each other. Saturn is depicted as much smaller in relation to Jupiter than it is in reality. Also, the effect of their collision is inaccurate since both planets are mainly made up of gas. (00:44:50)