Once upon a time, there was a 210-year-old oak tree: the pillar of its world and a guardian of nature’s balance. Like a hostel that is always open, it was visited by friends passing by, but also by treacherous parasites and ruthless predators. Two eminent nature-loving filmmakers, Laurent Charbonnier and Michel Seydoux, have joined forces to create this unusual and rather spectacular adventure film, which they shot for months in the verdant French region of Sologne. Not only is their lush production mesmerising, the co-directors have also directed a prestigious cast comprising squirrels, woodpeckers, barnacle lichen, jays, ants and field mice