How about Yale history lectures on Robespierre and French Revolution?
http://freevideolectures.com/Course/2464/European-Civilization-1648-1945/6

Here's Carnegie Mellon's site on the French Revolution
http://www.andrew.cmu.edu/user/sc24/frenchrev.html

Educational videos, lessons, and games for K-12 - this is what's on for the FR
http://www.neok12.com/French-Revolution.htm

Another alternative is to search through http://www.livebinders.com/welcome
Type in French Revolution in the search engine; you'll get binders to view on what other high schoolers are doing on it or how teachers are covering it. You can view binders according to topic/subjects or age/grade. You can also create your own.

Another method is to type in French Revolution for kids or free French Revolution videos for kids or using similar key words. You should retrieve some school sites.

There's no need to audio/visual in digital format for us historians/teachers/librarians! Digital is here and is the future.