A letter to mother - A Brivele der Mamen

 Directed by Joseph Green

Classic Yiddish film from 1939 with music by Abe Ellstein. In this film music is integral to the development of the plot and in addition to the film's central melody that acts as a leitmotif throughout the film, a Passover seder is also featured and a few non-religious Yiddish songs are sung during the course of the film. 

More information can be found at the National Center for Jewish Film at Brandeis University website.