I also tried really quick 2 minute sketches such as the one below
By converting the video to jpegs using Quick time player I produced these contact sheets of a 10 second segment of the video. This video was recorded in 29 frame per second so I selected one frame every 24 frames.
Initially I tried tracing these over each other to see what kind of movement this created
I also tried creating a line using wax crayons. I then painted over these with water colours. The second image looked quite effective however I can't get enough definition with the line to create a moving image using this method.