Yes, off the top of my head it seems that an F/1.2 lens made for full frame cameras these days would actually offer superior light gathering ability, though the

Yes, off the top of my head it seems that an F/1.2 lens made for full frame cameras these days would actually offer superior light gathering ability, though the quality of the final image compared with Kubrick's film stills would be doubtless a matter for discussion. That said, of course, these lenses are marvels and any photographer would be delighted to give them a try — we do value novelty and and uniqueness in this sort of thing.