KMSP-TV There's been a lot on the news the last few days about Yellowstone. First the string of earthquakes in Southern California, then in South and Central America. Increasing "Tremor swarms" and some uplift at Yellowstone. I'm glad I don't live out that way.
If you have never seen it, there's a Discovery Channel movie called Super Volcano that is good. It's out on DVD, and most libraries either have it or can get it for you. It sticks pretty much to the facts, and is really a dramatization of what scientists know, or think they know, about super volcano events.
There's also a National Geographic hour long program called When Yellowstone Erupts. It shows up from time to time and is probably available for viewing on the internet. It's a documentary, well done and interesting without being overly dramatic.