A.C. Astor with Sentimental Mac
- 1928
- 10m
British ventriloquist A.C. Astor appears with his dummy Sentimental Mac in a film using the DeForest Phonofilm sound-on-film process.British ventriloquist A.C. Astor appears with his dummy Sentimental Mac in a film using the DeForest Phonofilm sound-on-film process.British ventriloquist A.C. Astor appears with his dummy Sentimental Mac in a film using the DeForest Phonofilm sound-on-film process.