Manhatta (1921)

One of the earliest poetry films, and still one of the purest. The painter Charles Sheeler and the photographer Paul Strand shot New York's harbor, bridges and towers, then threaded lines from Walt Whitman through the film as intertitles, so the city and the verse answer each other shot by shot. It is silent and roughly ten minutes long, which makes it an easy first watch, and free copies sit in the Internet Archive. Read Whitman's Manhattan poems straight afterwards and the skyline stays with you.