Writer/Director Mark Jenkin in a recent interview stated that one of his goals with his new atmospheric folk horror film Enys Men (the second word is pronounced like ‘main.) is to replicate the look of a low budgeted film from the 1970s.
He has nailed that objective to perfection.
Everything in the trailer, with the exception of the helicopter, looks period perfect. The film stock, the lenses, the aspect ratio, and even the composition of the frames all look spot on for a low budget horror movie of say 1972 or 73.
Take a look yourself. This is one film I will be catching the moment I can.