It's fine sci-fi schlock. There's a likable cast, a few tense body horror moments, and an interesting idea with a disembodied arm. The mostly generic hodge podge of a script doesn't live up to the potential of the rest of the elements. However, the most glaring flaw is the B-plot, Earth scenes added thanks to test audiences, which doesn't have any bearing on the principal story that happens in space. Thanks, test audiences.
Some material may be inappropriate for children under 13. Films given this rating may contain sexual content, brief or partial nudity, some strong language and innuendo, humor, mature themes, political themes, terror and/or intense action violence. However, bloodshed is rarely present. This is the minimum rating at which drug content is present.