I recently read the book Solaris from Stanislav Lem which was recommended to me by a friend. I read the book and I liked it. I liked it because of Lems very detailed description of the forms which Solaris creates and the accidents which happened there. I really must say that this 'scientific' descriptions of the happenings there were quite interesting and at some parts scaring. After I read the book I found out that there was a movie about this book and - because I really wanted to see those forms, the surface of Solaris and to compare them to those in my imagination - I watched it. But I the movie heavily disappointed me.
Only about 10% of this movie represent the book. The rest is absolutely different. Different characters, different names and different storyline. Sorry, but this movie should not be allowed to be called Solaris. Read the book if you want some Science-Fiction. Watch the movie if you want a twisted Romance.