A Natural Born Gambler (1916)
A Natural Born Gambler is a 1916 silent film short, the first of only two films starring Broadway comic and singer Bert Williams. It was produced by the Biograph Company and released by The General Film Company. Williams directed and G. W. Bitzer, usually D. W. Griffith's cameraman, was the cinematographer. A still surviving film featuring Williams in his famous blackface routine.
More at Wikipedia.