Yes and yes, and Jimmy’s underage gal pal, and John Bonham’s and Peter Grant’s violence and thuggery, as well as tragic episodes like the deaths of children and Bonzo. I was not aware of the plans for two further films, so I guess they can’t avoid these subjects, deftly or otherwise.
My only interaction with Peter Grant was at a 100 Club Pretty Things show shortly before he died in '95. He had lost virtually all his weight, and was almost ostentatiously polite.