Never read the books either so I might watch the movie. Like CM said, it is often hard to enjoy the movies otherwise...
Just like the LOTR movies. They were outstanding movies but I still found myself thinking of inconsistencies from the book, parts that were left out...
I read the trilogy way back in the day so some of the inconsistency's were not glaring but I was aware and yes, the movies were very well done.
Dune was a total bust.