The horror film is officially rated R for its “disturbing ritualistic violence, grisly images, strong sexual content, graphic nudity, drug use and language.” It’s unclear whether the back and forth resulted in any cuts to the film before it hit theaters or an agreement with the MPAA, but as it is, it’s easy to see that it was on the borderline.
Article source: https://www.cinemablend.com/news/2476454/why-midsommar-was-almost-rated-nc-17