Why is it spelled "Cheez?"

Well first, it looks and sounds like the word "cheese."

As this is a documentary about Parmesan cheese, that seems appropriate. 

When you take a closer look, however...

The word "cheez" means "thing" in Punjabi! (ਚੀਜ਼)

In Northern Italy, cheese is the thing that binds Punjabi Sikhs and Italians. It's what brought them together. Now these immigrants have a completely new life in a new country and new culture, all because of Parmesan "cheez!"