We had a nice pneumatic rig built for this one. 4 days on location in an old abandonned building scheluded for destruction and 1 day on green screen. A crew member got sick from all that rotting food smell...

The work itself is a mix of everything: split screens, green screen comps, full CG sets and matte paintings. Our matte painter took pictures of popcicle sticks as his base for a few shots of the hole.