Inspired Experimental Film

I guess I don't know where I'd draw the line for the term experimental film. I just saw the new movie Pan's Labrynth by Guillermo del Torro and I'd call that one of the best experimental films I've seen in quite a while. I think this is partly because it reminds me a lot of German Expressionism, in particular The Cabinet of Dr. Caligari. The shadows were all pretty exaggerated and even almost looked like cutouts and the acting was so over the top that I really felt like that movie was striving for something that a mere fairytale plot could not churn out. I call this experimental film because it reminds me so much of a new way of confronting something far less fantastical than what the meaning conveys. This genre seems like it's very ahead of its time, like an experimental Chronicles of Narnia. I'd highly suggest seeing this movie.