Instead of aiming high and telling a story for the ages the industry settles for something that will draw a crowd. I am not saying that there aren't new and original stories out there. There are plenty of great, interesting writers. But those movies are usually attached to a low budget and carry the word "independent" in the trailer. The art of true storytelling is not often coupled with the money that is thrown at blockbusters.
I believe that good stories only become blockbusters when a big industry name backs it (see Schindler's List, Cast Away, Dark Knight) or someone is truly committed a la Lord of the Rings or Titanic. But too many movies these days pander to the masses and fail to be great or even good. Deep down we want to be inspired, too come away from a movie thinking or wanting too be more.
Escapist movies are like popcorn. Sure it tastes good but it doesn't fill you up.
Stay tuned for a much longer diatribe on how the Hollywoods has destroyed sci-fi.