Photo by Magnolia Pictures Gardening has never featured much in the movies. A few years ago there was the spectacularly batty A Little Chaos, in which horticulturalist Kate Winslet brought a feminine touch to the gardens of Versailles, seducing its master gardener Le Nôtre. Lovers of kitsch still treasure the scene in which Louis XIV, played by the film’s director Alan Rickman, in the saturnine mode of his villain in Die Hard, tells her: “Nothing would suit me better than for me to take some advice on perennials.” Master Gardener is the most recent work by the veteran director Paul...