Watch Petrichor (2017) : Full Movie Online Free On one level, the film is the narrative of a mid-western thunderstorm…with images of gathering cumulonimbus clouds, downpours, windswept landscapes…and a sense of progression. But there is also a willful subversion of this order, with a play of color fields, film grain, and flashes from a wandering mind’s eye. Finally, like Dorothy in The Wizard of Oz, we arrive at a locale that might exist only in dreams.