My interpretation of the ending
I looked thru part of the thread that already exists about the ending, but it is 5 pages long and I ran out of patience trying to read thru them all to see if anyone's matches what I got from the film.
I really loved this film besides what I felt was a miscast with Jeremy Davis as Snow.
It seemed to me that at the end, Chris chooses to not go back to earth, yet we see a scene of him clearly back on earth, along with a scene where he notices he has no scar on his finger, so therefore is he a copy? Then Rheya shows up for a "happy ending".
This seems contradictory since they also show a scene of the inside of the escape ship, and clearly he, nor a copy of him is anywhere to be seen. -And- we see the scene of him left at the Solaris space station as it gets engulfed by Solaris.
So... what I got from that is the scene of him back on earth at the end was something like an alternate reality that Solaris creates for him when he chooses to stay at the space station and he kind of "merges" with Solaris itself.
Anyone else thinking along these lines?