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.

Alexandr Hackenschmied, born Alexander Siegfried George Hackenschmied, known later as Alexander Hammid was a Czech-American photographer, film director, cinematographer and film editor. He immigrated to the U.S. in 1938 and became involved in American avant-garde cinema. He is best known for three films: Crisis (1939), Meshes of the Afternoon (1943) and To Be Alive! (1964). He made Meshes of the Afternoon with Maya Deren, to whom he was married from 1942 to 1947. His second marriage was to the photographer Hella Heyman, who had also collaborated with Hammid and Deren on several films.