If you were watching the BAFTAs on Sunday night, you might have been aware of an odd moment during the acceptance speech for Best Film.

As 'Oppenheimer' director Christopher Nolan and the film's producer (and his wife) Emma Thomas took to the stage to collect the award along with Cillian Murphy and producer Charles Roven, they were joined by an unfamiliar figure who stood directly behind them.

Many viewers brushed it off as someone who must have been involved in the film in some way - but it has now come to light that the man was in fact a social media prankster who has previously gatecrashed other awards ceremonies.

BAFTA say that they are "taking the matter very seriously" in a statement.

“A social media prankster was removed by security last night after joining the winners of the final award on stage," it read. "We are taking this very seriously, and don’t wish to grant him any publicity by commenting further."

The unnamed prankster, dressed in a tuxedo, joined the 'Oppenheimer' team as they took to the stage, arriving from the other side of the auditorium.

He was apprehended by security after Nolan, Murphy, Thomas and Roven left the stage.

It's not the first negative press that the event has attracted, following a seriously inappropriate line of questioning by a BBC reporter on the red carpet - who was heavily criticised after he quizzed actor Andrew Scott about Barry Keoghan's genitalia.