I'm sure that it was also in 1955 that Tex Johnston barrel rolled the Boeing 707 prototype, of which video footage exists and is available on YouTube. I believe that when asked what the h*ll he thought he was doing! he is alleged to have said that he was selling airplanes! Good call.
Bob Hoover was, probably, the premier exponent of energy management as the link in Bergerie1's link shows. No questionable Photoshopping on either of those clips, but like others I'm not qualified to comment on the images of the alleged Vulcan rolling, although I do think that the second set looks highly dubious, which may call the first set into question.
Kobus Dune makes an interesting point which I believe reinforces my opinion made in post 14 about qualification. On that note, the next time I go off in my 65 year old Chipmunk I must remember to do a few twiddly bits.