Parents need to know that this film has a few mild swear words and one mild fistfight. The overall tone of the message is definitely appropriate for kids.
My baseball obsessed son loved it. It was also helpful for him to see kids who were less fortunate than he, but still happy and hopeful - and of course to see things turn out well for them. It gave us an opportunity to talk about how fortunate we are to have a family (these kids start out in foster care) and to appreciate things like getting to go to a real baseball game (these kids were forced to watch from a tree outside the stadium, as they did not have the means to buy tickets.