 The house that gets sucked into a black hole at the end was actually  a model about four feet across. The model took several weeks to  complete. The shot was arranged with the camera placed directly  above model, which was mounted over an industrial strength vacuum  generator (the front door was facing directly up, straight at the  camera). The model also had about 100 wires attached to various  points of the structure. These wires went down through the back of  the house, and down through the vacuum collection sack. The camera  was turned on, and took 15 seconds to wind up to the required 300  frames per second. The vacuum was turned on, the wires were yanked,  and several SFX guys blasted the house with pump