this movie make no sense . one of the major plot point be for the alien to find child ( in the present time ) that could hear them and take them to another world before the cataclysmic end of our planet . so why do they need to appear 50 year ago and leave a cryptic message with date of vary catastrophe . just so cage character can figure it out and let his kid go . how about all the other ship with other kid . they get their own puzzle . how come the girl who be able to hear them 50 year ago be not part of the expeditionary force but instead be leave to suffer for all her life . in other word and everything lead up to the end of the movie be not a necessary element for the end . no logic here at all and a real downer of a movie . a couple of star give for special effect ( which for the most part have nothing to do with the premise of the movie ) . shame and because i almost always like what nicholas cage do .