It depends. I don't like seeing any living creature being harmed without just cause or provocation. But I also understand that the natural world can be rather unforgiving. Even a vegetarian or vegan diet demands the maiming or killing of animals in the process of harvesting and protecting crops. So, if one were to make the amelioration of elimination of suffering as their foundational moral principle, they would inevitably hit a ceiling or have to take their moral logic to a rather extreme conclusion (e.g. asceticism). That doesn't make that way of thinking invalid, mind you; most moral and ethical frameworks are ideals that cannot be adhered to with perfect consistency by even the most well-intentioned, well-educated, and/or privileged individuals.
I bring this up because I think a lot of people are inclined to view matters of right and wrong within a framework of moral deserts. Animals are not moral agents, and whatever harm is wrought upon them, especially by humans who do have moral agency, is naturally repugnant to us if good reason for that harm cannot be established (e.g. killing an animal to provide food for your family).
In many films, the harming of animal is usually a cheap emotional ploy to get the audience invested by humanizing and dehumanizing the players in the narrative. For example, someone mentioned John Wick earlier, which is a good example of what I mean. It makes John Wick seem heroic and human even though he is just a killer for hire, and by extension, it makes whatever harm he inflicts on his enemies seem just, which makes the violence all the more entertaining and cathartic. The irony here is that the dog relegated as being a prop device and not something with intrinsic value. The lost Lenore/dead wife tropes are also examples of this.
For me at least, I understand films are fantasy, so I can watch these films provided no real harm is done to the animals (or humans, for that matter). I usually refrain from movies that involve animals because, well, most of them are cloying shitfests or aimed at really young children. Not looking down on people who enjoy those kinds of films, but they aren't for me.
I will say, however, that some people--and I'm not saying anyone here is guilty of this--almost seem to brag about how little they care about the harming of humans versus other animals. That, to me, is a very strange flex. It's like, yea, Hitler loved his dog, too, man. But whatever.