Held my attention. Costner was good. It was interesting to see him go in another direction. Even disregarding the scientific aspects the script was preposterous. People would not act like that. The ending was especially ridiculous--they all lived happily ever after . Oh please. Should have killed him off, although even that would be too much of a cliche.

Difficulty knowing who was who and who were the good guys and who were the bad guys. Starting sequences were muddled and confusing. Mediocre movie.

Too violent, too many "f" bombs. Nonsense.

It was a neat idea but didn't get pulled off well. THe movie could have been a little shorter.