Though it is in Books, Music, TV & Movies I will also accept games as part of this. Anyway I have heard phrases like "the ending totally ruined it for me" and I am not sure that really applies all that often, a con film being about the only time and that is mainly if they hose up the "what you missed/what happened" part. Equally the only time I can see it making something bad become good is somewhat amusingly the times where it was revealed to all be a dream/pretend/for fun. Some might say films but I can ignore sequels, also "because it is a complete work" would seem to go right out of the window when it comes to TV shows (stop watching dexter when, scrubs ends at series 8* as does Roseanne... come to think of it some would say the same about stargate). I suppose in some ways it is related to the "do you have to finish a game to make the final call" thing. *I wonder if series 8 is actually better than "The Difficult Third Series" thing some speak of.