Of course they shouldn’t be. They don’t belong to us to use for entertainment. Even if we do treat them well. Taking in an animal and caring for them is one thing, but taking in an animal and caring for them and exploiting them and using them for money and profit is another. That is wrong
It depends upon how they treat the animals. Animals like horses, pigs, dogs etc are supposed to be trained cruelty-free (using rewards rather than punishments). In most movies the animal star usually consists of multiples of the same breed to ensure that all the tricks required by the character can be done…. A lot of movies and shows that use animals also rescue them from shelters (just look at the SeaWorld show ‘Pets Ahoy’.
Animals in movies and entertainment is not wrong, if done right. We also have to ensure that we aren’t judging an entire industry based upon one or two movies…..
Horses and exotics are really often abused in movies. I know a horse named Caesar who lives at a sanctuary but was once beaten and starved for a movie…even though people can make sure their companion animals are not being abused, no one is there for the more exotic ones! Also, tigers, lions, etc, just don’t belong on set if they are physically abused or not. They belong either in the wild or on sanctuaries.