As of Wednesday afternoon, the tweet garnered more than 150,000 likes - and a response from YouTube, which said it had taken action in response. "I advise you look away and/or turn down the volume if you have anxiety or just straight up hate jump scares, please retweet to save a life".
YouTube responded on Twitter to one of the warnings, pointing out that the ad actually violated its "shocking content policy". The video features a volume button declining before a Nun pops up and screams. Jump-scare videos are a de rigueur form of marketing for horror films.
You can watch it here with a forewarning, caution, etc.
Are you excited for the new horror flick?
Do YOU think The Nun will be as scary as this ad?
"We value diversity and respect for others, and we strive to avoid offending or shocking users with ads, websites, or apps that are inappropriate for our ad network", the policy states.
YouTube did not specify what part of that policy "The Nun" ad violated.
"Here are some examples of content that we consider or may be violent or shocking: Profane language, violent language, discriminatory terms or imagery, gruesome imagery, graphic images or accounts of physical trauma, gratuitous bodily fluids or waste, promotions that are likely to shock or scare, promotions that are capitalizing on sensitive events". While it may not have been held in the highest regard, it did warrant a sequel, Annabelle: Creation, which was met with much more positive reviews.
"The Nun" will open for cinemas on September 7, which plots a novice and a priest, whose past was already haunted by some demons, on a risk to investigate suicide of a young nun in Romania.
The creepy film is going to hit United Kingdom cinemas on Friday, 7 September.