Are Aliens or Angels trying to warn us here on earth?

i have heard many theories from doentaries and other people who have read somewhere about such. i heard from somewhere that there was an appearance on tv of a tape or somethink that withheld information that was not to be released to the public. it was a small doentary of how there are alien species (aliens might not always be green or silver with big eyes) but they looked much like us humans and were living among our planet, one lady lived next door to one of these alien beings and showed her a complete map of galaxies we'd not found etc and she showed na and im not sure what happened there on. but one thing i do remember was that they thought we were incredably unintellegent for blowing up neclear bombs in out own solar system and remind us how lucky we were to inhabit earth blah blah blah. thats all that i remember.