Other mistake: When Gary and Gerti fall in the camel poop, there a few things wrong with that: 1) camels poop in "pellets", not like what you see in the movie; and 2) Gary and Gerti are both in the centre of the pile when they should be at the end of it. They are both in the same spot (it has nothing to do with leg length).
Spy Kids 2: Island of Lost Dreams (2002)
1 other mistake
Directed by: Robert Rodriguez
Starring: Antonio Banderas, Carla Gugino, Cheech Marin, Alexa PenaVega, Alexa Vega, Daryl Sabara
Continuity mistake: Carmen is wearing white sneakers riding with Juni on the magnetic transporter. After jumping off the magnetic rider and entering the hidden temple, Carmen is wearing black sneakers.
Carmen: We're kids, not monsters.
Dr. Romero: What's the difference?
Trivia: If you've seen the part of "Four Rooms" called "The Misbehavers" you will notice in Spy Kids II, Antonio Banderas is combing Juni's hair and it's almost the same scene as when he combs his son's hair in Four Rooms. (same director)
Question: Why did Carmen take off her shoe?
Chosen answer: Because Juni told her that her feet stunk so she wanted to see if it was true.