Apart from which, it's also a fantastic film, as effective today as it was when first released some 47 years ago!
I was fortunate to see it again on the big screen last autumn, during its limited re-release as part of the BFI's "Sci-Fi: Days of Fear and Wonder" season. The auditorium was packed and at the end, there was a burst of spontaneous applause from the audience.
It was also fascinating to see where Christopher Nolan had got most of his ideas for "Interstellar" from. If only Nolan had taken a further leaf from Kubrick and given his own film a more mysterious and thought provoking ending, instead of trying to tie up all the loose ends, he would have had a better film on his hands.
I'll certainly be upgrading my Amaray copy with the new Steelbook but I've opted for the French release which is somewhat cheaper at only EUR 14.99.