Prince Harry will attend the premiere of 'Dunkirk' in London next week.

Prince Harry

Prince Harry

The British royal will watch a screening of the much-anticipated new movie from director Christopher Nolan about the evacuation operation during World War Two at Odeon Leicester Square.

The new film boasts a stellar cast that includes the likes of Tom Hardy, Sir Kenneth Branagh and Cillian Murphy, while One Direction star Harry Styles is also making his debut in the flick.

Prince Harry will host three veterans - George Wagner, Gemma Morgan and Louis Nethercott - at the movie premiere, as well as a reception at Kensington Palace for Dunkirk war heroes.

Prince Harry's own career in the British military ended in June 2015, and he previously admitted that he sometimes forgot who he was during his army days.

He explained: "I've always been like that. My father's always trying to remind me about who I am and stuff like that. But it's very easy to forget about who I am when I am in the army.

"Everyone's wearing the same uniform and doing the same kind of thing. I get on well with the lads and I enjoy my job. It really is as simple as that."

The royal also admitted to firing on the Taliban during his time in the military, but he insisted he was merely doing his job.

Prince Harry said: "If there's people trying to do bad stuff to our guys, then we'll take them out of the game, I suppose.

"Take a life to save a life ... the squadron's been out here. Everyone's fired a certain amount."