John Ford hated the film, which was to be his passion project. He even walked off the set, forcing assistant directors to finish shooting the movie, loudly proclaiming that RKO "ruined the damned thing."
The 1916 flag is on display at the National Museum, Collins Barracks, in Dublin.
The original Starry Plough was designed by George William Russell for the Irish Citizen Army.
The Starry Plough banner (Irish: An Camchéachta) was originally used by the Irish Citizen Army, a socialist Irish republican movement. The original Starry Plough was unveiled in 1914 and flown over the Imperial Hotel by the Irish Citizen Army during the 1916 Easter Rising.