Complex sentence: The ethics in question are not just about the food, fur and test animals, but also pets and show animals, including how the animals are treated on set and off set, even down to how the animals are loaded for transportation purposes.
Split into simpler sentences: The ethics in question are not just about the food, fur and test animals, but also pets and show animals. Including how the animals are treated on set and off set, even down to how the animals are loaded for transportation purposes.