Scriptgeist

Stewart McKie is at it again with his word cloud software at ScriptGeist:

You can import as many scripts as you want into your own Scriptgeist library. Then you can view a variety of statistics and visualizations generated directly from the content of your script. The statistics include lists of characters, scenes and locations and dialog by character. The visualizations include word frequency clouds, pie charts and character throughlines.

I'm not sure what mechanical analysis of the words and characters in your script gives you, but it looks like fun.