The Neverending Story. Whoever thought it would be a good idea to take a dragon and turn it into a flying puppy should be banned from filmmaking for life. Not to mention all the other ways that this abomination twisted a great book into a complete mess.
ThreeLivesInOne
joined 10 months ago
Other than the usual trilogies, The Hitchhikers Guide to the Galaxy. My longest series was The Dark Tower by Stephen King though.