1. How can experimental film be narrative and vice versa?
Experimental film can be narrative, but it requires much more from the viewer than the average film would ever ask for. In order for an experimental film to have a narrative when one is lacking (on the surface), the viewer is forced to build one from the images and action. If someone is imaginative enough, the results can be interesting and lead to some newer views on what the film may be about. It can also have the opposite effect. Forcing the viewer to build something extra in their mind to go along with the film may only lead them to miss aspects in the film that they might otherwise catch if the the film was taken and interpreted at face value. It may also push them to a state of frustration. While film viewing is not a passive experience, most people experience it at a level where the interaction can appear to be passive, being presented the story, characters, images, narrative, structure, etc... all placed just right within the frame and then engaging them. How can narrative film be experimental? This is tough to answer because it depends on what you view as experimental? Is experimental only experimental when the entire product throws away traditional conventions? Does narrative film have the ability to stray to the point of experimentalism without the alienation of the viewer? In my mind when a traditional narrative film uses an experimental technique and incorporates it into the film it no longer is experimental, an experimental film can still use that idea and it will still be experimental. I may think this way due to the fact that in this day and age we have seen almost everything. With the combination of cultures, music, film, books, technology, and all the subsects within them...nothings shocking. That may be why I hold this view. I am not saying that a narrative film can't use experimental ideas to create something different, its just that I have already seen its use somewhere at sometime and it no longer strikes me as experimental.
2. Why are these (experimental) films important?
Ultimately they aren't. These films aren't raising questions that already haven't been asked, answered, and asked again and they haven't created feelings or experiences that something else already has or could. What they can do is remind us of those moments and questions and then replace them. Again this is completely subjective and only the individual viewer can answer them. Ask me tomorrow and I will have a different answer.