"History of the internet" is an animated documentary explaining the inventions from time-sharing to filesharing, from Arpanet to Internet.
If you are interested in more Internet history you can also read/watch:
- ISOC: History of the internet: http://www.isoc.org/internet/history/
- Geschichte des Internet (german & link to Amazon): http://tinyurl.com/4kzlwq
- Computer Networks: The Heralds Of Resource Sharing http://tinyurl.com/apocod