When I say collective, I mean you went to a movie with your peer group, could be any age or time. Collectively you were excited as group to see this movie, you all wanted to like it so much. But when finished viewing it you were all collectively disappointed and it was 100% unanimous amongst the group that the movie really sucked, all were profoundly disappointed. There is only one rule in this you had to share the experience at the same time in the theater not separately or alone or even at home and you thought collectively it sucked. I only have one movie that fits that category because every other movie different people had different opinions some liked it but some others didn't or some were just Meh. And it is TMP, and no I don't mean TPM I mean Star Trek: The Motion Picture. No movie going experience was such a collective failure as this movie. As Star Trek fans as well as Star Wars fans my friends at the time expected to see something at least a 1/4 as good as Star Wars only 2 years later in 1979, instead we got a lame story with a bald chick with no space battles. To this day it is my worst collective movie going experience with friends and they all agreed, one of the persons with me was my brother and couple decades later we discussed how that movie was such a disappointment to us. And it never did change with time, I even re-watched it couple of times to see if my opinion had changed, nope Since this is your opinion and your friends there can be no wrong answer.