Child seen fleeing cinema during screening of horror movie 'Midsommar'

Hereditary director Ari Aster's new movie Midsommar is not for the feint of heart.

Clearly traumatised critics have variously called it 'psychotic', 'disturbing', 'terrifying', 'bizarrely beautiful', 'hallucinatory' and, in one review, simply 'f**ed up'.

It follows the story of a couple attending a ‘festival’ in Sweden who get a little more than they bargained for.

The Motion Picture Association of America notes its 'disturbing ritualistic violence, grisly images, strong sexual content, graphic nudity, drug use and language'.

It’s star Florence Pugh even claims the film “gave her PTSD”.

Witness the wide-eyed terror of the trailer alone...

And while many have called it a 'must-see', it looks like some people took that as something of a blanket recommendation.

Read more: Parents flee cinema as horror trailer is shown ahead of Peter Rabbit

A24, the producer of the movie, yesterday re-tweeted a video of what appears to be a parent rushing his child out of the cinema during a screening of the film.

Bizarrely, it wasn't at the beginning of the movie, but some 125 minutes in, after some already eye-popping violence and pretty frank sex scenes.

A24 noted 'He will remember those 125 minutes for the rest of his life'.

No doubt, but this is not the first time that Aster has terrified children.

In April last year, parents bundled their children out of a cinema in Australia after it accidentally showed the trailer for Hereditary before a screening of Peter Rabbit.