Set from the rise of Adolf Hitler's Nazi Germany in the 1930's until the Battle of Britain in 1940. Scottish engineer Robert Watson Watt is hired by the British Government to develop his new idea, something which would go on to be known as radar. He has to endure many set-backs and class snobbery, while his marriage is put under enormous strain by the enforced secrecy and workload but eventually gets his theory put into practice, saving many lives in the process and helping win the Battle of Britain.
This British historical film is quite light-hearted despite the very serious subject matter. Much of this comes down to a playful script with quite a lot of comic moments between Watt and his team as they work towards their goal. But the singular main reason is the presence of star Eddie Izzard in the central role. He reigns in his comic persona and plays the role with seriousness but he still can't help but be amusing at times nevertheless. It's a very good, measured performance that benefits greatly from Izzard's very likable persona; even if his Scottish accent was a bit strange some of the time! At heart, this is a quite simple and solid example of a British period drama. It's elevated somewhat though by the simple fact that it's a true story about characters who never seem to have been given the big screen treatment before. We do care for these characters and we want them to succeed, so this ensures that we are onside and involved throughout. It's obviously a film which has been made on a moderate budget, so this means that certain decisions have had to be made such as black and white archive material showing the horrors unfolding in Europe and footage from the movie The Battle of Britain to illustrate certain aspects of that conflict. But they are integrated perfectly well into the flow of the film. Otherwise the modest budget has been utilised well to ensure the period detail is convincing, while the cast as a whole are all very good in their respective roles. So, all-in-all a very solid little movie about a relatively unheralded British hero, underpinned by a fine performance by Eddie Izzard.