At the Words by the Water festival in Keswick last week, we were able to witness two versions of the same real events and thereby to compare them. The events in question concerned the life and work of  Alan Turing, the mathematical genius whose work enabled the German ‘enigma’ code to be cracked during World War 2. The first presentation came from Turing’s nephew Dermot Turing who gave us five ‘myths’ about his uncle and proceeded to use his detailed knowledge of the family and the history to replace these myths with something closer to the truth. His talk was followed by a showing of ‘The Imitation Game’ a 2014 film ostensibly about Turing’s life and war work, and the events leading up to Turing’s death by suicide in 1954.

At the end of his talk, Dermot Turing urged us to enjoy the film we were about to see, but warned us that the Alan Turing we were going to see portrayed was not, perhaps, the real man, but a filmic construct. He didn’t use those words: in fact he was very polite about a film that demonstrated each of the five myths that he had previously been at pains to deconstruct. No point in railing against it, I suppose, although I doubt whether my reaction would have been so measured.

The film was much heralded when it was released. I can’t recall all the fulsome epithets used by the critics, but some of them at least thought it was very good. But did it actually tell the story accurately? No. In some crucial respects, the needs of the film, the demands of the genre and the presumed expectations of the audience clearly over-rode any semblance of historical accuracy. One example: Turing was already working on the German code before the war began and had cracked it by 1941, but in the film the breakthrough is beset by technical and political difficulties and wasn’t achieved until much later in the war, as the need for it became ever more urgent, creating a false tension that never actually happened.

The script – in my view – was dire, cliche-ridden and sentimentalised. I checked later: the scriptwriter was American and born in 1981. To what extent, I wondered, were both the script and the unfolding of the story affected by the demands of the 3 act structure so beloved of film-makers: – the ersatz crises, the bullying army officer, the cynical MI6 man, the fresh-faced young man who had by some fluke turned up in the code-breaking team. And then there was Keira Knightley as the only woman on the team. Words fail me. Why her, again? I assume I was expected to suspend my disbelief for the sake of the story, but instead I was increasingly  irritated by the whole sorry mess.

On the way out I began thinking about my own attempts to weave real events into a fictional setting, and whether I too should be castigated for sacrificing authenticity in pursuit of a good tale. The issue is most pronounced in the third book of my West Cumbrian trilogy ‘Fallout’, which is set against the backdrop of the nuclear reactor fire at Windscale in October 1957. I had 90,000 words rather than an two hour film script to play with, but still the responsibility to portray the real events as accurately as I could weighed heavily on me, for two reasons. First, it was a point of pride that I got my facts right. And second, Windscale is just a few miles up the coast from where I live and the fire happened not that long ago, within my memory and those of many people who live around me in this area. You can’t, and shouldn’t, muck about with the known facts when many of them are known by so many. My research was careful and meticulous. Even if it made a better story I couldn’t make the fire last longer, or less long, or do more damage, or require intervention beyond the means of the local men who managed to get it under control. So why did the makers of ‘The Imitation Game’ claim to use a real story, take such liberties with it, and get away with it? I can be very critical of my own attempt to blend fact and fiction but at least I tried to respect the events rather than abuse them.

Historical fiction that purports to represent real events raises particular challenges when those events are within living memory. It’s something I’d like to think more about as a writer, and try not to imitate ‘The Imitation Game’.