In a year that he would like to forget, which included his acrimonious divorce to Amber Heard, Johnny Depp made an appearance at the new Cineramageddon stage at Glastonbury.

Introducing his 2004 film The Libertine, about a 17th-century poet who notoriously drank himself to an early death, the 54-year-old chose to discuss American politics.

"I think [Donald] Trump needs help," he said. "There are a lot of dark places he could go."

He added: "I'm not insinuating anything - by the way this will be in the press and it will be horrible - but when was the last time an actor assassinated a president?"