What makes a film boring?

I guess what I consider to make a film 'boring' is bad writing. Ever see one of those crappy action movies that comes out in the middle of the year and you only see it because there's nothing else to do? The kind of movies that take themselves way too seriously. Yeah, those usually end up being pretty bad.  Like that movie Safe House. Who the fuck is going to remember that in thirty years?  I mean the movie wasn't terrible by any means but it suffered from what I like to call taking-your-movie-too-seriously.  No one is going to find your movie interesting when its filled with suits talking in unintelligible CIA jargon. People connect with a movie when there's a character they can relate to.   Anyways,  I recently saw The Bourne Legacy with a few friends, and none of them had any idea what the story was about. I only had a vague idea of the story because I had read the Wikipedia synopsis of the first few Robert Ludlum novels, and new about Treadstone and whatnot. It also helped that I saw the previous movies. (Off topic: Pillars by Sunny Day Real Estate is a great song.) The movie had some pretty good action scenes I guess, but the chase scene at the end had some pretty shitty camerawork. Back to the main point of this post, what made The Bourne Legacy boring in some parts was the fact that a lot of the time you didn't know what the hell they were talking about. When the viewer is lost in the conversation, they react how they would in a real life situation. If you were with a group of people and they started talking about something you have no interest in, naturally you are going to either leave that group, or become distracted by something else because you don't care about the conversation at hand. The film equivalent of that is that the audience stops paying attention: they look at their watch, think about what they're going to do after the movie, or leave to get a snack.

If I ever write films when I'm older, one of the things I would focus on is making sure the audience can connect to the script.