A man has reportedly been beaten up outside a cinema after loudly revealing the plot of the new Avengers film to queuing fans who hadn't yet seen it.

According to Taiwanese media, the man was left bloodied outside a cinema in Causeway Bay, Hong Kong, after watching Avengers: Endgame.

A photo of the man has circulated online, according to AsiaOne, and shows him sitting down on a blood-spattered pavement.

A man has reportedly been beaten up outside a cinema in Hong Kong after loudly revealing the plot of the new Avengers film to queuing fans who hadn't yet seen it

Cinemagoers eagerly queuing to see the new film were said to have been furious as the man shouted out spoilers of the final Avengers film.

The film is the sequel to Avengers: Infinity War and is the culmination of 21 feature films and 11 years of production.

The Russo Brothers, who directed the film, wrote an open letter to fans to deter them from ruining the plot to other movie buffs.

In a post on Twitter they said: 'To the greatest fans in the world, this is it. This is the end.

The Russo Brothers, who directed the film, wrote an open letter to fans to deter them from ruining the pot to other movie buffs after five minutes of Avengers: Endgame was reportedly leaked online

The pair used the threat of the franchise's fictitious supervillain Thanos in an effort to stop any further spoilers being released

'The end of an unprecedented narrative mosaic spanning eleven years and eleven franchises.

'When you see Endgame in the coming weeks, please don't spoil it for others, the same way you wouldn't want it spoiled for you.

'Remember, Thanos still demands your silence.

'As always, good luck and happy viewing.'

The pair singed off the letter and wrote a hashtag at the bottom - #DontSpoilTheEndgame.

After five minutes of the film was reportedly leaked online, the directors thought it was time to speak directly to their fans and used the threat of fictitious supervillain Thanos in an effort to stop any further spoilers being released.