
Idea for an Iron Giant-like Animated Gamera movie
I originally had this idea for Godzilla (alongside an animated remake of the 1998 Godzilla and Mothra as a 90s animated American musical, akin to the Disney Renaissance and The Prince of Egypt but I digress), but was then told the premise would fit Gamera way better. I tried fleshing it out a little more a few days ago.
If you've ever seen The Iron Giant, you'll know what kind of movie this would be. If not, to put it simply, it's about a kid who discovers a giant robot that fell to Earth and they become friends. So you can see how that premise would fit Gamera (I mean it's kind of like Gamera the Brave). I'm not entirely sure what I'd want the general plot to be at the moment (if I were to write it into a full story), but the most consistent part of all the ideas I have for it is that, like The Iron Giant, Gamera was originally a weapon of mass destruction who goes from being a destroyer to a protector, being either built by aliens or the Atlanteans.
One of the ideas for the Alien route is that Gamera was made by aliens seeking to conquer and occupy Earth by attacking it with bioengineered Kaiju, and Gamera betrays his alien creators through his friendship with the young boy, or would've been part of a larger army of bioengineered turtle Kaiju on either an alien planet or in Atlantis, who turned on their creators and destroyed their civilisation, with Gamera being the last of these in existence. This is partly influenced by The Iron Giant, but also by the Heisei Gamera trilogy and Nausicaä of the Valley of the Wind, as they have giant creatures (the Giant Warriors in the case of Nausicaä and of course Gyaos in the case of Gamera) being built as weapons that caused the fall of their respective civilisations. I'm kind of a sucker for stories where advancements in weaponry lead to the end of the world. In either case Gyaos would also be bioengineered weapons, being either alien or created by a human military, and they'd be the main threat that Gamera would have to fight.
Sorry if any of this is poorly explained, I'm not great at articulating my thoughts. I'd also just call the movie Gamera, since aside from the 2015 short there's no film that just has that name.