mother!: Anatomy of an F
Darren Aronofsky's mother! (2017) received a CinemaScore of F, one of the rarest grades in the survey's history for a wide release (/Film, 18 September 2017). Coverage at the time noted the film opened in around 2,000 theaters and placed third at the domestic box office, while audience reviews online were heavily negative (Pajiba, 18 September 2017).
What an F actually measures
CinemaScore asks opening-night moviegoers to grade the film from A to F. An F therefore does not say the film is badly made; it says a large share of the people who chose to see it that night felt strongly let down. That is a measure of expectation fit. A film marketed with a major movie star and a mainstream thriller tone, but built as an allegory, can fail that test while still being admired by critics who knew what it was.
Why we don't print a critics number here
We deliberately only quote figures we could verify against a named source for this article. The sources above confirm the F grade and the audience reaction, but they do not give a critics percentage, so we leave it out rather than guess. If you want the full picture, enter the current Metacritic and Rotten Tomatoes values in the tool and compare them to the CinemaScore yourself. Open the tool.
The lesson for score design
The practical lesson is to keep the survey grade visible in its own form, next to other sources. Opening-night viewers are a particular audience, not a random sample of everyone who might see the film. Our high default weight is an editorial choice, not proof that this sample is fully reliable or representative.