This documentary is an unblinking, often disturbing look at industrial food production from field to factory. “Our Daily Bread” can be extremely difficult to watch, but the film’s formal elegance, moral underpinning and intellectually stimulating point of view also make it essential. You are what you eat; as it happens, you are also what you dare to watch.This documentary is an unblinking, often disturbing look at industrial food production from field to factory. “Our Daily Bread” can be extremely difficult to watch, but the film’s formal elegance, moral underpinning and intellectually stimulating point of view also make it essential. You are what you eat; as it happens, you are also what you dare to watch.