For the special effects and production I would award 10/10, and it is worthy of an Oscar nomination for that alone, if there is such a category. However, the script is pitiful, the dialog for the most part banal, and even for someone with a basic high school knowledge of physics, the technical feasibility is way, way off in far too many areas to list. OK it's a movie and we can expect a degree of artistic license with the science, but really this is so way off that the whole movie loses credibility. No complaints about the acting, given the script they had to work with, but I don't see anything especially worthy of nominations or awards for these performances. So, 10/10 for the effects, 4/10 for the everything else, 6/10 overall, but worth watching just for the zero gravity effects.