spoiler alerti personally quite enjoy the movie a it do change direction half way through the movie and keep the audience guessing and whether this be intentional be open to debate . certainly the reviewer here who believe they know the end after 10 min and i think be con themselves and they probably saw the trailer or hear it on the grapevine a clearly up to half way through the movie the audience be lead to believe that cage character be clearly there to stop the disaster from happen or at least try to save some life and the end of the world do not come into it at all . the big problem that i have with the movie be that it simply leave too many question unanswered a to the point of various story line within the movie and this be show by the various different interpretation by other review . i shall ignore the various believability of certain action in the overall storyline a this be a sci fi movie so you will get load of them e. g. cage just happen to spill his drink and highlight 9/11 but concentrate on the one that need an explanation represent 1. what waslucinda role in this . apart from the production of the number . she could hear the angel so why be she not pick by the angel to leave the planet . why commit suicide and why do she live in the exact place the alien be pick up the child and why do she never try to warn people of the disaster like cage character do . 2. what be the role of the stone . they be clearly give to all the child that be to be rescue but what be there purpose . my guess be they be track device and use by the alien to track the child they want but we never find out or be they directional finder for the other child to know where to go . or where all the child kidnap to get them to the correct location and if so what be the point of the number at all . 3. the number on the paper that cage character use to eventually work out where to go to save his son and be this their primary purpose or be it a fluke that he have the paper and his son just happen to be choose at the same time . 4. when rise die and cage character try to explain to his son at the end that she have die and his son simply state that she would be ok and how would she be ok and she be dead and why have the stone in her hand when she die and what be it significance . anyway any answer to these question would be most welcome .