I have that problem with so many books though! Or worse yet, films of books. When people come up to me and say things like "Hey, have you seen The Golden Compass? It's awesome!" I just want to slice them open and stuff their mouths shut with their own innards. Or something to that effect... It just frustrates me why people have to take perfectly good stories and turn them into something horrible just to cater to people too lazy to read.
Kids these days!
Age old issue... at least since the movies started grabbing books as material... come to think of it thats been always. Anyways, yeah, get a number of people who think they are "better" than the person who read the book because they were CLEVER and watched the movie instead. I'll admit there were a few movies that I enjoyed more than reading the book that preceded it, but those are rare instances. Usually those movies took a title from a famous work, kept some of the names, and not much else. Two movie-novel comparisons that still have me grinding teeth are Dracula, and Starship troopers.
the 90's "Bram Stoker's Dracula" had all the events the book had, but spun it into a love story. Changing the gist of the story was bad enough, but a few years later I ran across a novel "Bram Stoker's Dracula, based on the movie by Francis Ford Coppola" and my jaw dropped. 90% of the novelty of the book was the way it was written. building a story from journal entires, newspaper clippings and the like. that thing felt like an insult.
Starship troopers the movie, kept the worlds, the names, and one or two events, but otherwise left out great big chunks of the plot that made the novel great in my opinion. but as far as action movies went, it wasn't bad... like I, Robot though, it only really had the name there to draw in an audience. nothing of the story was the unique bits FROM the story.
but yes, usually I let people feel they are better, and MUCH more clever than I because they skipped reading to watch a movie. if they get too full of themselves, I deflate 'em with a peeves, a 30 second bomb, or otherwise bit from the story that was relevant that hollywood decided to leave out.