Ugh, that sounds horrible. Again, has Krypto been his dog the whole time? Or has he been in hiding too? How did Clark stop a super flying puppy from being noticed when it was young? Is this a longer living super dog? Like... has he been alive as long as Clark? If not, how on Earth did the dog get here? This sounds as clearly as possible to be a plot device as you get! Here, you're basically saying, "well the dog's change in confidence and acceptance will reflect Superman's." That makes him a plot device. Lassy really wasn't a character... it was a fictional being that kept the plot moving forward. The same will be true here. The story is about Superman. Krypto... at best... will help audiences to understand Superman better. At best, that's what Krypto can be.
I love dogs. Are you seriously suggesting that one must have a dog to appreciate that a flying, super smart, super long living dog is reasonable? I like cats too, have you considered a super cat? I grew up on an emu ranch actually... what about flying emus? Makes sense right? Krypton is just a copy of Earth... I guess..... yeah?
Right, because that's really the only option available for a dog when it comes to 'character' growth. It starts out unruly, and becomes ruly. It starts out suspicious of its owner, and by the end, it accepts its owner as a friend.
Now.. 1) just because the dog undergoes change, doesn't make it character growth. Like, R2D2 got rocket packs in ROTS. Does that mean he grew up from TPM? It feels imperceptible if it does.
2) that's predictable, and again... really more in service of moving the plot forward than in developing Krypto's personality. I really don't know why you folks want to insist that Krypto is going to be a character. You can inundate this thread with lots of examples like this where the dog is literally the centerpiece of the film, sure. It drives the plot (otherwise known as a *cough* plot device *cough), but the idea that Krypto will somehow be this supporting character that grows in the way a dog would, really does seem silly.
And that's my point. It's not that it can't be done. But if it gets too cartoonish (which this concept easily could), then you risk exposing the edifice of the movie to the audience, forcing them to disengage.
Not really. I love dogs too, and sure... they're sentient in that they react to stimulus, but not much more than that. They show affection, they protect when necessary... they react to the things around them. A dog isn't going to go off from home and pursue its dreams or sacrifice its future for it's belief of what's right.
These dogs that you've loved.... they've mostly been an accessory to you and your family I'd imagine.... an ally to you; it goes where you go, it behaves how you want it to behave. That's not a character... that's a plot device. The dog is an accessory to your life. What exactly is the problem with that?