"Ancient Aliens" but it's more like the Aliens from *Aliens*. Apart from the fact that many conspiracy theorists appear to have pulled their intellectual (hah!) property straight from this Hammer Films production or similar flicks, this is also classic science fiction and monster horror filmmaking at its very best. What could've been just another mediocre piece of 60s pulp novel fluff gets elevated here by super robust writing, gorgeous looking sets, props and effects, moody atmosphere and strong acting performances throughout. While nothing special on paper, this thing is clearly made by folks who give a shit about their craft.