The movie was an okay adaption but it's not a great experience to leave the cinema halfway through a movie and maybe see the second half in a couple of years.
Its all made worse by the fact that, in an effort to rid the book of stilted exposition, the meanings of the words are explained once or twice in passing mentions, and seem to be replacements for real words fairly arbitrarily (you try to remember one word only to find its never mentioned again, another it turns out is vital to the plot).
Though I guess that is to be expected of anything which has has such a vast influence on a genre, no book is perfect.
Either way, the affect was the same, both in terms of how it influenced others and how it felt to read.
Though it does make me wonder how it treats the arabic translations. The obvious answer would be to keep the words the same, but if thats the case then the use of different languages would seem a bit arbitrary. Maybe English words are used in the Arabic translations (though I doubt it)
It wouldn't make much sense, because the Fremen are Arab-inspired, or at least, Middle Eastern. Arrakis is a desert planet toyed with by colonial powers. Any other interpretation would change the work so much it would become a completely different book.