[quote name='soccerstud652']Go read the book. Its better than the movie.[/QUOTE]
[quote name='thingsfallnapart']ten fold better ending.[/QUOTE]
Really surprised to hear this. I've read the book and watched the movie at least three times each (probably a few more for the movie), and I not only think the ending is barely different (in terms of story, I suppose), but I also consider Fight Club (the movie) to be the best and most accurate representation of a novel that I've ever seen.
A few things were changed (almost all of them really didn't matter - like Chloe - a character who had about fifteen seconds of screen time - dying a bit later in the film), but for people who enjoy film as an equal artform to literature, I have to say that the film was created in a-near perfect way to reflect the book.
Chuck Palahniuk worked closely with Fincher and Jim Uhls on the screenplay, and Palahniuk has even said in interviews that there were MORE metaphors in the movie that he didn't even think of when writing the book (the fact that Tyler was criticizing his father for creating his family and then leaving his children and wife, and going off and creating another one - like a "franchise" - and then how Tyler did the exact same thing with Fight Club) and was kicking himself over it.
Like I said, I think this is the movie where the typical "It wasn't as good as the book" comment comes into play the very LEAST of any adopted film I've seen.