You could — at the risk of being burned at the stake by purists — try the other one [0] which is faster paced but touches on the same ideas. Then if you’re really intrigued by that, go back to the original.
I found the 2002 Solaris very moving and would recommend it to others. (And, in case there has been some burning at the stake, I am up-voting your comment.)
[0]: https://en.wikipedia.org/wiki/Solaris_(2002_film)