Rather surprised this did not turn up in a search from 'the beginning of time,' except mentioned in passing on some non-Solaris titled threads ...
Mrs.D is doing a "great course" on scifi in the movies, and turned up some beauts including this one. Or these ones. First we watched the 2002 remake starring George Clooney (which I had definitely seen before), then she read the book, then we watched the original(?) 1978 Tartovsky outing, which I dunno, maybe seen before?
Mrs.D is admant that the Tartovsky original is a more faithful adaptation, and exposition-wise differs significantly from the Soderbergh-Cameron version, however I thought they were very similar plot treatments of the material, though with considerable differences in how scenes were staged and intercut (it would be fair to say the Soderbergh is a tad dumbed-down). I felt I knew exactly how the T-version would unfold, and wasn't surprised or confounded by any unforeseen plot wrinkles, having seen the S-version so recently.
The T-version has better effects (surprising, given its age, and James Cameron's producer role in the Soderburgh), and has an overall more convincing portrayal of the humanoid creature summoned by the alien life-force from the Kelvin character's memories of his dead wife, including a memorable scene in which
she recovers painfully from having swallowed liquid oxygen -- which did not rely on any remarkable effects, but on superb scripting and acting.
One thing I realized from my forum search was that I had confused Solaris with T's other film, Stalker, which I found unwatchably dull.
The T-version Solaris is reckoned to be one of the 'best' (as in profound) portrayals of an alien in a scifi film, a claim I have no quarrel with.
EDITED: 29 Sep 2022 16:08 by DSMITHHFX