Understand IMDB ratings - why I said 9.0

Rating: 9/10 (28 November 2019)

The best movies of all time are only 8.5, that means 85% of people really enjoyed thoroughly.
People are complaining it's only a 7.9, but comparatively that amazing. I rated it a 9 to pull its rating up!
For me this was a 10/10, excellent movie and especially fitting that I read 'After the Funeral' by Agatha Christie just a few months prior to seeing Knives Out.
But understanding an old bachelor adage, is important: THERE IS NO PERFECT 10.
If this review makes one person go read Agatha Christie it was worth my time.
P.S. After the Funeral was also published as 'Funerals Can Be Fatal'. AND... there's a lot more murder in the book ;)