Bridge to Terabithia main characters = Hiccup & Astrid???

Not really. Leslie has the blonde hair, but it's short and her face is nothing like Astrid's. And Jess and Hiccup? Not even remotely close.

There is a kid in my homeroom and PE classes who looks exactly like Hiccup: that hair, facial symmetry - everything! I freaked out when I looked at him after seeing the movie. His name is Ross. He doesn't talk much, but he has quite a few friends.

kinda...and that dog could be like Toothless...lol

Well, kind of, but that was a good observation! I probably wouldn't have thought about until আপনি brought it up. Their looks and personalities are basically similar.