There is nothing wrong with not liking a good movie. There is something wrong with saying it's not that good because it's confusing when most other people seem to grasp it just fine (edit: I should say, grasped it to some extent at least, or enjoyed it regardless).
I'm sorry but the only criteria you've given for saying that it isn't all it's cracked up to be is you didn't understand its plot. Seems to me the fault lies with you and not the movie.
I'm sorry but the only criteria you've given for saying that it isn't all it's cracked up to be is you didn't understand its plot. Seems to me the fault lies with you and not the movie.