But do it anyways. This is a movie of cat-tossing in zero-G, on the Vomit Comet, which is what they call the planes used to simulate zero-G with parabolic flights. They used the Vomit Comet to film a lot of "Apollo 13."
Check out the original link from Boingboing for more info on "educational" Air Force experiments.
UPDATE: Link to movie fixed