As "The Black camel" is my favorite Charlie Chan movie, I admit to being prejudiced. Choosing between this film and "Charlie Chan in Rio" as the best production based on the original story by Earl Derr Biggers would have to, for me, go with "Camel." In my humble opinion, "Rio" is sufficiently different from "Camel" (both the book and the film) so as to stand on its own as a very good picture.
