IMO, ever since the lord of the rings, and pirates movies, it seems that movies are just beng made as fast as possible. I remember when it took forever to make a movie, and the actors actually had time to perfect their lines before it was shoved on to the big screen. It seems now that they introduce a movie and then a month later it is out in theaters and they totally svck. I have thought a lot of movies were going to be great, such as the Green Hornet and the newest harry potter but they were badly put together IMO. The best movies so far for me have been "How to Train Your Dragon," which I thought was going to be a silly kids movie, and then there was "The Eagle." Even The Eagle wasn't all it could've been. Whats going on??
Have you heard of something called The Golden Age of Hollywood? I think you'd be surprised to learn that back in the day studios were pumping out formula-adhering, quickly produced, shallow scripted films faster than game devs pump out Halo copycats today.
Actors signed a contract. And that contract could last anywhere from a couple of films to two decade's worth of films. The studios were more interested in milking as much money out of the actors' presence as possible. They weren't interested in unique scripts.
This happened in and around the 50's, by the way.