The movie is from the 80s I suppose. It's a film I saw when I was a kid.
I remember that a boy is somehow lost and is found 10 or more years later, but he is still the same age. Everyone around, his parents, brother, though has aged. I remember that when he is found, he asks whether big macs still exist or something like that. In the end he goes back to his times.
Thanks for help
