Still, why does "Big" hold up so well, it can't just be because Tom Hanks became the biggest star in the world, or that we all just love the scene with him about Robert Loggia in the toy store playing piano. Well, for one thing, we love body switching stories. The original "Freaky Friday", at least in the modern time, although it's definitely not a new concept then. but the joke with those movies that use the trick that two-people are switched, from "Vice-Versa" to "Face/Off" even, is that, we're seeing one actor person act like someone else, and then they switch back, walking a mile in someone else's shoes. That's not what happens in "Big" though, it's the world of a 12-year-old, who then becomes a 30-year-old. He's first a child in a man's outfit, he's then got to adjust to living in the adult world, while being a kid, and experiencing more adult things, like work, sex, relationships, and then, when given the option, becoming a kid again, now having had the experience.
Admittedly, as much as I admire "Big" more and more the older I get, but the film works better when you’re young, since we're more willing to be caught up in the magic of it all, but that said, "Big" is clearly the best of the subgenre, not just because it was the smartest and best take on it, but because it just has really talented people doing their best to tell this story way better than, probably it ever should've been. It's a quirky, funny, silly movie about a kid who turns into an adult and back again that launched a lot of great careers and shockingly still holds up and is remembered almost thirty years later.