I'll give this a three star just because I'm a sucker for space movies. There was no character development in the movie and George Clooney acted like he had just stopped in the studio for 20 minutes on the way to Malibu. Sandra Bullock looked past her prime and her obvious facework looked puffy in space. She was not into this movie and acted like she was just reading her lines. Also too old for the part. The special effects were not bad albeit repetitive. The premise of the movie wasn't very believable - Irwin Allen would have at least set you up for the preposterous plot with some deep-voiced B actor lending it credibility down at control. The name of the movie also doesn't make sense because gravity has very little to do with the plot. I like the name though. This movie would have been a lot more credible with lesser known actors that actually looked like astronauts, and at least two should have ate in in spectacular fashion. Even with a bit of a weak plot, this movie should have been at least a 6.5 with cheaper actors. If I gon on any more I'm going to lower my rating of this movie, so I'll stop here.