The more I see and read about the Disney Dreams show the more impressed I am. Here are a couple of pictures and some more video of the show.
A couple of pictures released by Disneyland Paris:
An interview with some of the creative team behind the Disneyland Paris 20 celebrations. A large portion of the video is on Disney Dreams and features Steve Davison
Here is a great HD version of the show:
To help visualize the area here is a link to some video shot of the fountains by day: