Final film of veteran character actor Frank WilcoxFrank Wilcox.
The Million Dollar Duck (1971) is the first of three movies that film critic Gene SiskelGene Siskel walked out on during his professional career. The other two were the horror film Maniac (1980) and the comedy Black Sheep (1996).
Near the conclusion of the movie, just before Jimmy captures Charlie the duck, there is a Volkswagen Beetle with the license plate OFP 857. The tag was the very same as Herbie's in The Love Bug (1968), another Disney movie starring Dean JonesDean Jones that was the first in a series of ["Love Bug" films].