i perfectly know the feeling, but with other movies :D
FMJ is 1 of my favorite films of all time...
However, there are other films that have been as hyped to me that i thought were very average as well..
The less i hear about a movie, the more inclined i am to enjoy it.. the more i know about it going in, the higher the expectation and the harder it is to impress..
Personally, i have never seen "the blues brothers" My expectation for this film is so high based on the hype, it can not possibly ever live up to the hype :D