Cinematic adaptation of a TV series that BBC wiped from existence making this is the best existing presentation of one of the first serious science fiction series made in England. It is a good movie whose plot is of such high quality it was reused for "Lifeforce" and other movies later. Professor Quatermass is like a scientist detective and the plot also unfolds like a crime story which I like". Beautiful production.
An excellent expansion of Kneale's earlier BBC serial with a splendid sense of place and the best of a generally satisfying trilogy (this is certainly the better cast of the lot). There's a solid certainty to the pseudo-science and, later, demonic-rising which frighteningly rounds off the relative seriousness of the endeavour.