So, I completely understand why people do not like this movie. It can be gross, confusing, and just plain stupid at times. With that said, it is one of the funniest movies I have ever seen. Jemaine Clement and Sam Rockwell fell into the roles of some of the funniest characters I have ever seen. There are some lines when both in and out of context made me laugh so hard I cried.
This movie is not for everyone, I think people who like both napoleon Dynamite and Nacho Libre will find some enjoyment out of this(which I don't). More importantly, I think people looking for some sci-fi fantasy literature satire will get a kick out of this, because both the dialog with the "Authors" and all the excerpts from the two books had my laughing out loud constantly.