Slightly incorrect opening.
The opening writing in the film says that in 1974 Leed United were the dominant force in English football. That was not quite true by 1974 because Liverpool had won the League title and Uefa Cup in 1973 and the F.A Cup in 1974 so by 1974 Leeds had an equal rival in Liverpool who were as dominant as they were (and of course who went on to dominate both England and Europe throughout the rest of the 1970s and 1980s).
Sure, Leeds had a super side but by 1974 were not THE out and out dominant side. Since 1972, Liverpool had won more than they had. Just saying.
Also it was a bit strange to hear Cloughie calling Revie the greatest manager when Shankly was still around because Cloughie actually thought more highly of Shanks as a manager than Revie.