Mr.Red; according to the site there is footage of Django with Ellington's big-band. I wasn't aware of any collaboration with Miller but I would be interested to find out more. Reinhardt never seemed to make it work with the American big-band scene, probably too much of an individual improvisor, nor could he make the transition to the electric jazz guitar successfully. That said, he could probably have got more out of an elastic band than I can with my modern, precision-built guitar and full compliment of fingers!