Channel Hop: Kind of. The first three films were released under the Dimension Films name, but the fourth will be released under the Disney name. However, Dimension Films was (at the time) distantly owned by Disney, so technically they were always Disney films even if they didn't have the Disney logo at the beginning.
Executive Meddling: The fourth film. Rodriguez didn't want to make another one and was in no hurry to make another film for producer Harvey Weinstein after he was single-handedly blamed for the failure of Grindhouse. However, he owed Weinstein one more movie in a contract signed before that movie was released and Weinstein wanted a sequel. All The Time in the World was the result.
Fake Mixed Race: Juni certainly doesn't look like he could be Antonio Banderas' son.
And let's not forget that Juni's mother is mixed-race herself. After all, her father is Ricardo Montalbán.
Keep Circulating the Tapes: The 3D version of Spy Kids 3D on DVD went out of print after Lionsgate purchased most of the Miramax library and wasn't released on Blu-ray until 2012, over a year after the film's initial Blu-ray release.