Okay, I'm going to floor you with my suggestion: Mary Poppins. Ha! Actually, I could write a doctoral thesis on this topic alone. I absolutely get a kick out of the fact that the minor character, Mrs. Banks, is a suffragette while she is alone or with friends (or even with the children) but turns into a dutiful and subordinate wife while Mr. Banks is around. She even goes so far as to take off her "Votes for Women" sash saying, "Put these away! You know how the cause infuriates Mr. Banks!!!" Ha!
Although Mrs. Banks can be considered a proponent of hypocrisy, it's really Mr. Banks that is guilty of the discrimination here. He says, "I treat my subjects, servants, children wife with a firm but gentle hand." (I just LOVE Mrs. Banks' subtle grimace during that line.) Mary Poppins is Mr. Banks' nemesis. She is a woman who simply will NOT be discriminated against. Through her words and actions, she turns his own insults upon him. When Mr. Banks intent is to fire Mary Poppins, she ends the conversation with the command for Mr. Banks "to take the children with you to the bank tomorrow, exactly as you proposed!" Not to mention Mr. Banks intense anger at the fact that he cannot say supercalifragilisticexpialidocious.
The big irony is, Bert is absolutely NOT guilty of discrimination towards women and treats Mary Poppins always as an equal. God bless him!
Okay, and I've got to mention another just for fun: Pretty Woman. Who can forget that iconic scene when Julia Roberts walks into the fancy dress shop and the ladies refuse to wait on her, ... and the sobs along with, "I have all this money and no one will help me!!!" I suppose this is discrimination of a particular kind of woman, ... but a woman, no less.