I was looking forward to this movie and was quite disappointed in it. Flat characters, horrible plot holes, and bad science (apparently they don't know the difference between chromosomes and a single strand of DNA! ). I really like Tim Robbins and Gary Sinise, but they couldn't overcome the writing. Some of the dialog was obviously there just for the audience; it was hard for me to imagine astronauts and scientists saying such obvious things to one another.
The effects were good, and the movie was moderately enjoyable, but it could have been a lot better.
I suggest waiting for the video or catching it at reduced cost.