CINERAMA SEVEN WONDERS OF THE WORLD (1 Viewer)

With SEVEN WONDERS OF THE WORLD due out on Bluray later in the year,it would be great if some of the unused footage could be included as an extra.It was originally to have been the second film in Cinerama and several scenes were already filmed before it was abandoned and CINERAMA HOLIDAY became the second Cinerama film.I understand that Paul Mantz's aerial footage of flying over Cuba and South American were stored in a Government warehouse somewhere in Maryland.Does anyone know if this footage still exists?Paul Mantz mentioned this during an interview many decades ago.