Skyrails is a crazy 3D visualization of graphs/data. It looks like something from a movie.
Skyrails was designed to create visualizations of social networks, but it could be applicable to any kind of graph. The system has a built-in programming language to customize the graph and its attributes, designed for experts as well as novice users.
You can download it and try it out (on Windows).
Semi-unrelated, here is a reel from a Visual Designer who creates a lot of the interfaces you see in movies.
Todd Fraser
