Check out the part one video of Ultimate Guide To Dune by Quinn's Ideas on Youtube. I would link to it here, but when I try that it doesn't save the comment.
Edit: Ooh, it let me comment finally! Here's a link to the video. It summarizes all 6 of Frank Herbert's novels in a very visual way using artwork and movie stills over 30 minutes.
Note: if you want to stop around where the Part 1 movie finished, stop around the 9:08 mark. For the end of the Dune novel, stop around the 9:20 mark.