To Fly! is a 1976 American short docudrama film directed by Greg MacGillivray and Jim Freeman of MacGillivray Freeman Films, who wrote the story with Francis Thompson, Robert M. Young, and Arthur Zegart. It premiered at the giant-screen IMAX theater of the National Air and Space Museum, which opened to celebrate the United States Bicentennial. The film chronicles the history of aviation in the US, with a narration written by Thomas McGrath. Thematically, it explores the search for national identity through the country's westward expansion as well as humanity's relationship with aviation.