32, 35 ... tomato tomaato.
But seriously - there are film artifacts throughout the footage, so it's entirely possible that it's that good.
And an FYI - the date on this absolutely is 4-16-82. Although the voiceover masks most of the interviews, at 0:38 Mercury is clearly heard saying "we've done three shows" (re: Gothenburg, Stockholm, Drammen). And furthermore, roadies are seen doing the load in, which definitely wouldn't happen for the second night.