Stephen Broomer permutates the home films of Ellwood F. Hoffmann (1885 – 1966), a self-made hosiery mill owner from Philadelphia, into a road movie. Richly expansive in ways only another person’s intimate diary can be, director’s third feature-length film, following “Potamkin” (2017) and “Tondal’s Vision” (2018), asserts the Canadian as a master of the found-footage form.