The castle is reputed to be the largest Hollywood set built for any silent movie. Lloyd Wright, Frank Lloyd Wright's son, designed at least one set which he later remodeled as a temporary band shell for the Hollywood Bowl.
Alan Hale, Sr. appears as Little John in this film and reprised the role sixteen years later in The Adventures of Robin Hood (1938) opposite Errol Flynn, then again in Rogues of Sherwood Forest in 1950, 28 years after his performance in the Fairbanks film, which is probably the longest period for any actor to appear in the same major role in film history.
The film was restored by the George Eastman House and the Museum of Modern Art in 2009 and was showcased with important screenings at the Eastman House's Dryden Theater (accompanied by an 11-piece orchestra conducted by Gillian Anderson) on October 24, 2009 and at the Academy of Motion Picture Arts and Sciences's Samuel Goldwyn Theater (introduced by author Jeffrey Vance) on June 27, 2011.
The cost of the film has been guessed at for decades. Jeffrey Vance (author of "Douglas Fairbanks", published in 2008) unearthed definitive production figures for the great Fairbanks films. "Douglas Fairbanks in Robin Hood" had an actual production cost of $930,042.78.
The 2008 book "Douglas Fairbanks" by Jeffrey Vance (page 151) debunks the myth that the Fairbanks 1922 silent "Robin Hood" was somehow "lost" for decades. The film was never lost. In fact, the Museum of Modern Art has made the silent "Robin Hood" available through their Circulating Film Library (non-theatrical/educational distribution) since 1938.