The story: her father´s murder, Jupiter lives in poor conditions in Chicago and works as a cleaner along with her mother and aunt. When her life is threatened be aliens, ex-soldier and genetically manipulated half wolf, Caine comes to help and her life takes an unexpected turn.
The movie: It has a bit of everything: Cinderella, Silver Surfer, basically everything you ever saw about the „greys“, some Hindu legends/gods, Genetic manipulation, angels, vampires, dinosaurs, loads of space ships as well as adventures in space and the good old love story. All of this put in a blender and so we have this flick. The dialogue is trivial in this case and it´s good so, because it´s the weak point in the movie.
Conclusion: If you can ignore the dialogue and the fact that Jupiter is saved by her hero in the last second way too often, you have two hours of entertainment.