I have wrestled with how I could convey the drama of a wolf encounter for some time. The problem, in my mind, was that I wanted the tension of proximity to be coupled with a palpable sense that the drama was yet to be played out – it could go either way. I wondered how Hitchcock would work this – it was not good enough to have distance between the two subjects as focus would then be an issue. The wolf and human needed to be equidistant from the camera to make them both sharp.

Then one day in Montana three years ago, high up in the mountains, I saw an abandoned farm truck not far from the main road. It had probably been there for over 60 years and was now just a rusty shell. It clearly offered potential to play out this concept but ideally I needed fresh snow on the bonnet and roof. The more virginal the snow cover the better.

This year I had my fresh snow and in Roxanna Redfoot, I had the perfect girl to cast in the role of the prey. The doors would not budge and she had to climb in through the broken window – but that was not a big deal for Roxanna even in tough temperatures. She is a rock star and I have no doubt that Hitchcock would have cast her at every opportunity.

It’s one of those images in which simply everything works.