There is this movie where it is like 3-5 boys who grow up together one is a little chubbier as they are younger. They grow up and separate. While they are yonger they are walking in the woods and I think come across a dead body. They walk on train tracks.. This is all I can remember. If I hear the name of it I would no.

Stand by Me (1986) (http://www.imdb.com/title/tt0092005/)