Harry Styles has a "full-time bodyguard" to protect him from fans on the set of 'Dunkirk'.

A source said: "Harry has to have a full-time bodyguard to follow him around because fans have been breaking onto set to see him. He's the only person who has a security guard at his side round the clock, but his minder follows him home too.

"The fans managed to find out where he's staying and have been camped outside his hotel even when he's not even there. Harry is the only cast member with personal security. Nobody else has extra staff apart from Kenneth Branagh. He has a driver, but thats it."

And the 22-year-old star is also said to be getting on really well with the film's cast and crew.

An insider added to the Daily Mirror newspaper: "Mark Rylance really gets on well with Harry. They have been known to enjoy a bottle of wine together some evenings when they aren't filming.

"The hair and make-up team love him too because he's very polite. One time he even made the effort to thank the catering department for making what he called 'fantastic food'. He's such a gent."

Mark recently sang Harry's praises, revealing he has a "gift" when it comes to acting.

He said: "What's really surprised me is he's really witty, really funny - he really makes me laugh. He's been ever so brave, not making any fuss.

"He seems remarkable ... one of those people who has - Sean Penn has it too - a kind of panache. I look at them and think, 'How did you get that? How do you get so that life is easy?' But he has got a lovely, lovely character. It's a gift."