Hammid worked in partnership with filmmaker Francis Thompson (1908–2003) for over 25 years, producing numerous “in-house” documentaries as well as several films for general viewership. One of the best known of these is the first IMAX format film, "To Fly!" (1976), which premiered at the Smithsonian Institution’s National Air and Space Museum (NASM) at the museum’s grand opening celebration on July 1, 1976. Produced in conjunction with MacGillivray Freeman Films, it continues to play regularly at the Air and Space Museum.