Gus Van Sant, director and celebrated chronicler of intimacy, has been studying painting since the 1970s, when he attended the Rhode Island School of Design. Now, decades into a luminous career that’s produced influential films such as Milk (2008) and Drugstore Cowboy (1989), Van Sant will show some of his canvas work to the world at his first New York City solo exhibition, which will debut in September at Vito Schnabel gallery. The show, entitled “Gus Van Sant: Recent Paintings, Hollywood Boulevard,” features a series of watercolors by the auteur that depict hazy male forms superimposed on city buildings, their spectral consciousnesses staining or permeating their surroundings.