On-set expert Paul Biddiss tells Radio Times what it takes to be a military adviser for some of the biggest dramas around.

By Laura Rutkowski

Published: Friday, 08 September 2023 at 12:12 PM


This article was originally published in Radio Times magazine.

Eagle-eyed Radio Times readers regularly point out historical inaccuracies, wardrobe errors and anachronisms creeping into period dramas with a military theme. But why, when so much care and time are obviously taken, do such errors slip through?

On-set expert Paul Biddiss is no stranger to this question in his line of work, having spent 24 years in the British Army as a paratrooper before becoming a military adviser on TV series including Trigger Point, Strike Back and War and Peace, as well as Sam Mendes’s First World War epic 1917 and forthcoming films Napoleon and Gladiator 2.

“The military adviser always gets blamed,” says Biddiss. “I can only say, ‘We wouldn’t do it like that,’ but if a director wants to do something, they’re going to do it. I try to get things as close to reality as I can, but nothing’s ever going to be 100 per cent accurate. I’m creating drama, not a documentary.”

For Biddiss, the role is 60 per cent research and 40 per cent his experience of being a soldier. “Weaponry and tactics change throughout the ages, but how a soldier reacts to a situation will be the same, whether they’re carrying a spear, an M4 assault rifle or a lightsaber.”

A military adviser is involved across the board – from helping with costumes and weapons to hiring extras, where Biddiss’s selection process is nearly as tough as the Army’s. So that stunts look realistic, he tests extras’ physical and mental robustness before giving them rigorous training. Some extras have even enjoyed Biddiss’s bootcamps so much, they’ve joined the Army!

Paul Biddiss
Paul Biddiss (right) tutors Alin Sumarwata and Jamie Bamber for Strike Back. Paul Biddiss

The ideal is to bring a military adviser into the writers’ room, where everything can be thrashed out well in advance of filming. But tight budgets mean this doesn’t always happen, and if there is no military adviser on set, it’s inevitable that mistakes can occur.

Biddiss has also on occasion suggested rewrites. “The Ministry of Defence and the US Department of Defence get very worried about how drama series portray the military. No one’s an angel, there are some bad eggs, but you’ve got to give an honest representation.”