Three sisters who believe life is going to be easy, now that their parents are back together, until one sister falls in love with another's fiancé, and the youngest sister plays matchmaker.
Three Smart Girls Grow Up is a 1939 American musical comedy film directed by Henry Koster, written by Felix Jackson and Bruce Manning, and starring Deanna Durbin, Nan Grey, and Helen Parrish. Durbin and Grey reprise their roles from Three Smart Girls, and Parrish replaces Barbara Read in the role of the middle sister. Durbin would reprise her role once more in Hers to Hold.
