1
Dan Lanigan acquired original Nightmare Before Christmas puppets, sets, and props over decades from crew members, fellow collectors, and Christie's auction when Disney sold assets — including the town hall, Jack's house, the fountain, and multiple character puppets.
2
Many polyurethane puppet hands (including Jack Skellington and Sally) liquefied over time; Bonita D. Carlo, head of original puppet fabrication, restored them using original wire armatures and new silicone casts from original molds.
3
The film used replacement animation for main characters: Jack, Sally, and the Mayor each had thousands of individually sculpted and painted interchangeable faces stored in a locked library room, all numbered for precise registration.
4
Stop-motion armatures are tuned individually to each animator's preferred resistance — tighter higher up the limb so animators can grip an endpoint and move only the intended joint; Tom St. Amand's team built the Nightmare armatures, with crew member Merrick Cheney credited with Santa's armature.
5
Henry Selick directed Nightmare Before Christmas, James and the Giant Peach, and Coraline, and personally retained some background set pieces that Lanigan later acquired directly from him.