Here’s a VFX breakdown that didn’t make it onto the Stop/Eject DVD, showing how rotoscoping and compositing techniques were brought to bear on a shot of Kate passing through Dan.
compositing
The Dark Side of the Earth Podcast #14: Hello Roto
Compositing supervisor John Galloway (from top VFX house Double Negative) and compositing/rotoscoping artist Joseph Brett explain how the puppeteers operating the Wooden Swordsman were painstakingly erased from the footage using Shake.