If I could give less than one star I would have. I love disaster movies, even bad ones, but the writers seemed to have such a flimsy grasp of basic scientific principals like how gravity works that I could not suspend my disbelief. The film also suffered from " when bad writing happens to good actors" syndrome. When the best line in the movie is a Spaceballs quote you know youre in for trouble. This movie had an interesting premise, but it borrowed so heavily from its predecessors that I could actually hear that Aerosmith song in my subconscious. Seriously, don't watch this movie.