Most of the characters are named after members of the famous Leeds United football team from the seventies: Cooper, Giles, Madeley, Revie, Jones, Jordan, McKenzie. In addition, Bremner St and Reaney's Diner are mentioned in the script.
When Sheriff Cooper and Deputy Bradimore are talking in front of the blackboard, the word "Karsson" keeps changing continuously to Karson with only one S and back, and the line underneath the word changes, disappears and returns.
In the final fighting scene between Deputy Bradimore and the Santa, Bradimore's hair changes from being tied up to the hair being loose in between scenes.