Cody and Natalie attend the "William Donovan Preparatory School". William Donovan was in charge of the US Office of Strategic Services (OSS) in World War II. The OSS eventually became the CIA.
The evil organization is named E.R.I.S. which is also the name of the Greek goddess of discord and strife. In mythology, she was the sister of Ares, god of war.
Natalie Connors was named after producer Dylan Sellers' daughter Natalie Sellers who asked for Hilary Duff to play the role. The real Natalie has a cameo in the film as well.
Right after Cody and Ronica are caught trying to rescue Natalie from E.R.I.S, Cody escapes and flips over a cart. He does a front flip 180 (half a rotation), meaning he should have landed facing back towards the cart, but in the next shot he is seen facing away from it, and than running to safety.
When Natalie and Cody are riding the snow bike inside the building to escape, they go through a glass door. The door breaks before they get close to it.