This would be the final film in the Charlie Chan series of 17 lower-budgeted features at Monogram (Sidney Toler in the first 11, Roland Winters in the last 6).
Monogram considered filming this last Chan film in England to take advantage of the frozen funds that it had there.
The stars of "Sky Dragon," Roland Winters and Elena Verdugo would later co-star in the TV situation comedy "Meet Millie" (1952-1956) with Verdugo in the title role and Winters as her boss in 21 second season episodes.
Working title: "Murder in the Air"
The last of 47 Charlie Chan movies, though the character was revived in a 1957 TV series starring J. Carrol Naish (The New Adventures of Charlie Chan (1957); a total of 39 episodes), and in a couple of unrelated movies. George Kuwa and Sôjin Kamiyama, both Japanese, each played the role once in lost silents, E.L. Park, a British actor who made no other films, put in a tiny cameo as Chan in Behind That Curtain (1929). The Swedish Warner Oland started the series proper in 1931 with Charlie Chan Carries On (1931), doing a total of 16 entries, Missouri-born Sidney Toler replaced him for 22 more, and Massachusetts-born Roland Winters ended it with the last six. Polish-born Ross Martin completed a 1970 TV movie reviving the character, a failed attempt at a new TV series, while London-born Peter Ustinov starred in a final theatrical release, Charlie Chan and the Curse of the Dragon Queen (1981), scripted as a satire/spoof, which was not a success. In 1976 Peter Sellers sent up the character (called Sidney Wang) in Murder by Death (1976).