Typical '70s miscellany of paranormal subject matter: some of it worthwhile, most of it junk, and so hopelessly muddled together that it renders even the halfway interesting stuff pointless. Kinda-sorta based on Ralph Blum's "Beyond Earth: Man's Contact with UFOs," this film steps outside the bounds of the book to embrace a jumble of nonsense from black masses to psychokinesis to the hollow earth theory. A good example of the film's utter indifference to accuracy: narrator Lawrence Dobkin yammering about Tiahuanaco (and its alleged link to Atlantis) over dark, grainy footage of Teotihuacan (i.e., not Tiahuanaco). Folks who have read Blum's book should see "Mysteries from Beyond Earth" for its brief--but interesting--excerpts of Blum's chat with scrupulously honest UFO abductee Charles Hickson. Otherwise, I can't recommend this.
Mildly amusing if you're in the right mood; irritating if you're not. Dobkin wasn't doing himself any favors by appearing on-camera in that ridiculous toupée and ascot.