When did we geeks decide that we are owed nothing by the creators of entertainment?
Actually, to hell with that. When did we, the modern Humanity, decide that it's best to have no expectations? That not only is it safer to avoid disappointment, but that it is better not to court hope? Why do we reward those who have failed us in the past by accepting their mediocre talents as all we deserve.
If the best you can muster is to go into Aliens Vs. Predator with no expectations, I say, you should not go. If you look at a movie that you thought would have potential, but your heart has sunken such that your only consolation is that you don't expect anything from it, I say, you should not go.
You owe it to yourself, and to the grand tradition of art that Humanity has nurtured throughout history, to abide not the ill-crafted offerings that film-makers, television producers, actors, and executives ask us to scavenge from. There are too many wonders in this world, too many dreams well-realized by struggling artists and hopeful writers, that you should feel any interest in seeing something that cannot elicit an expectant breath, that cannot stir your imagination with possibilities.
When did you decide that film-makers owe you nothing? There are things you love, things we all love. Family, friends, movies, shows, food, drink, and dance that we adore, and that we continue to hope will make our world better.
When did you convince yourself that dreams lead only to disappointment? Cradle your dreams, cherish them, and find a way to give them life. You will not let yourself down.
Do not waste your time on something you aren't willing to place a stake in. When did you stop wanting to be entertained? I know I never did.