Dwayne Johnson arrived at the event in a cloud of smoke and crackling electricity which cleared to reveal Johnson in full costume as the superhero.

To the delight of fans, Johnson turned up in full costume to promote his forthcoming film, Black Adam.

The crowd was treated to an extended look at the forthcoming film, which stars The Rock as the titular Marvel anti-hero who is bestowed with the powers of the Egyptian Gods.

During the interactive sessions that followed, Johnson made a playful jibe at Kevin Hart.

He was asked by a young fan amongst the crowd: “Mr Rock, when you got the job as Black Adam, did Kevin Hart ever get jealous?”

Johnson replied. “The truth is yes, Kevin Hart gets jealous of everything.”

“And you know, I’m pretty good with height and you’re already taller than Kevin Hart.”

The two actors have been friends, having starred together in numerous films, including Jumanji amongst others.

Black Adam is slated for release on 21 October.