I'm actually going to back-date this post so it appears later than my project post - but the best shot I can get from the film is around his speech "On a night out..."
You can clearly see how it lays around his neck, and the double panels and tassels. You get a general idea of the design, but not much individual placement of things.
My other photo is courtesy of Larry. It's what my pattern is based off, though there are still some areas I couldn't figure out. But what you can see clearly are the seed beads along the bottom, the tassel placement and most of the rhinestone embellishments. I believe his ascot has soutache stitched down, but that's a pretty lofty venture on velvet. I think you could use any number of methods to achieve a comparable look from stage.