The Return of Charlie Chan (1972). IMDb meta-data is a run time of 1h and 37m, rated 5.7 by 177 cinematizens.
Charlie Chan and the Curse of the Dragon Queen (1981). IMDb meta-data is a runtime of 1h and 35m, rated 4.0 by 1,400 cinematizens.
Verdict (1): Return to Sender – Insufficient postage.
Verdict (2): I rooted for the Dragon Queen.