Avengers fan in China taken to hospital after becoming hysterical during 'Endgame' screening

An avid Marvel fan attending a screening of Avengers: Endgame in China over the weekend had to be rushed to hospital after becoming hysterical.

The cinema-goer, 21-year-old Xiaoli from Ningbo, according to local news reports, began sobbing uncontrollably during the movie.

She soon began to hyperventilate and experience trouble breathing, after which she was then taken to the emergency room.

Read more: $1.2 billion opening for Avengers: Endgame

The International News reports that she was given oxygen, and soon began to calm.

“I saw that the patient had been breathing heavily, and according to the description from her peers, we thought that she her crying had caused hyperventilation,” an ER doctor told the paper.

“We immediately gave her oxygen and relaxed her emotions by appeasement, reducing her hyperventilation symptoms.”

It’s among a number of incidents surrounding the release of arguably the most hotly-anticipated movies of the year.

Unconfirmed reports on Taiwanese media emerged over the weekend of a man in Hong Kong being beaten up outside a cinema in Causeway Bay for shouting spoilers.

Read more: Every MCU film coming after Endgame

A picture purporting to be the aftermath of the incident, as shared on social media, saw a man with a bloodied head sitting on the pavement.

Makers of the movie have been at pains to encourage fans to keep the events of the film a secret to avoid letting others know what happens in the climactic final episode in the Avengers series.

Directors the Russo brothers issued a final plea on Friday as the film made its official bow in the US.

So far, it’s smashed box office records, making a staggering $1.2 billion worldwide over an extended opening weekend.