There is no point going through this film and trying to make all the science fit. The scientific fact has been stretched to breaking point. I found this a very enjoyable experience with some of the best comic strip bad guys in any movie. Costner plays a likable, although traditional, nomadic hero taking care of no 1. Fortunately, there isn't really a love element in the film to spoil it too much. This film has numerous memorable scenes that verge on the hysterical including the oars coming out of the oil tanker, the dropping of the match into the oil tanker and Costner's bungie jump to save the girl. Great stuff. I can't wait for the producers to make a sequel.