About Robert J. Flaherty:
Robert Joseph Flaherty was an American filmmaker who directed and produced the first commercially successful feature-length documentary film, Nanook of the North (1922). The film made his reputation and nothing in his later life fully equaled its success, although he continued the development of this new genre of docufiction, e.g. with Moana (1926), set in the South Seas, and Man of Aran (1934), filmed in Ireland's Aran Islands.