This isn't a space exploration movie and shouldn't be classified as a sci-fi either. For those who get it, it's a 10+ and for those who don't, they are missing the point. If you are lucky and realize your beginning and ending in your brief life in this universe then you will understand the purpose of your life. A goal oriented life vs a purpose oriented life, it's up to you.
A great movie that makes you think rather than to watch.😉