I mean primarily post WW2 period but if you know sth about prewar movies, you are welcome.
The first Polish film which shows Jews is Forbidden Songs from 1946. There is a scene with a Jewish girl who sings a beautiful song to the residents of a Warsaw tenement house for a few coins. She needs money to buy food for her starving family in the ghetto.
@Pawian, I watched a retrospective featuring this great Polish film at the Polish Consulate in NY many years ago for a Polish-language cultural evening in which I enthusiastically participated. By the end of the showing, there wasn't a dry eye in the entire house as the audience saw the charismatic Danuta Szaflarska singing the title song, glistening with tears upon just learning of her mother's death, yet bravely marching to defeat the Nazi enemy!
The next film with Jewish motifs which comes to my mind is Zezowate Szczęście - Curved Luck - with amazing Bogumił Kobiela who plays a Pole suspected by others of being a Jew due to his hooked nose.
Full film
Jewish scenes:
-he is mistreated as a "Jew" during "bench ghetto" boycotte at a university before WW2 - watch at 9:30
- takes part in a mixed nationalist and antisemitic manifestation against his real intentions - 24.00
- during the Nazi occupation he is suspected of being a Jew by two Jew hunters who raid his house, however when they discover AK underground stuff in his bag, they leave coz they have come for a hiding Jew, not fighter - at 1:08:00 It is sad and funny at the same time coz the protagonist`s mate urges him to show his penis and thus prove he isn`t a Jew.