This isn't new or anything but some eight years ago, XboxViewTV - Gameplay & Trailers channel uploaded the trailer to the Queen DLC for Rock Band 3 video game from 2010. It's interesting how the video of the rock section uses different angles compared to the official releases, and to the opening of the 2015 BBC documentary (From Rags to Rhapsody) just to make it seem the band really are playing the video game.
Anyhow, I managed to rip the video off of YouTube, and did some general cleaning to the clips which worked perfectly even with the YouTube compression. Nothing much I can do about the HUD. Check out the screenshots below for a comparison: link link link
DLC Trailer (Raw): link
Processed: link link
@Chief Mouse
Well, I'm still a rookie at doing something like this, thanks for you inspiration, by the way! Most of my video processing is doing using Hybrid Video Converter which has both Avisynth or Vapoursynth support to them. I stuck with Vapoursynth because I got so used it when it comes to doing de-graining, and things like that, but I've never tried Avisynth.