Harry Styles describes how was it to shoot for Christopher Nolan's 'Dunkirk'
Styles had to shoot some gruelling underwater sequences for WWII drama.
Singer-actor Harry Styles says filming his debut movie Dunkirk was a "gruelling experience" for him.
The 23-year-old musician says he had a trying time while shooting a water sequence fully-clad in clothes for the film based on World War II, reported FemaleFirst.
"A week before we started, Emma (Thomas, the film's producer) called me and said, 'By the way, I forgot to ask... you can swim right?'
"It was a relief to know that I could because there was so much swimming involved. However much you train for it, filming in the water for an hour in full clothes is a gruelling experience," Styles says.
The Sign Of The Times singer adds the director of the film, Christopher Nolan is a ball of energy and "leads by example".