Well, that's a good enough excuse to watch all the "Humble and Wise Detective" Charlie Chan films. You should find out

Dear Capenmoe,
The quote you mention is certainly not heard in any of the films from the Charlie Chan series, proper (1931-1949). There is the possibility, however, that it could have been uttered in the spoof-like film "Charlie Chan and the Curse of the Dragon Queen" from 1981.

Sincerely,
Rush Glick

Rush is most probably right. Although to me it sounds something Harry Who would say.

Thanks for your help. I found the Quote, it was from "Under the Rainbow" a spoof movie made in 1981.