Good old movie

Name of the movie about 4 or five boy frienship that ends when one of the boy stays under the old building stuck inside near the water, city decides to destroy this old house, and the boy loves horse, this horse feels him but cant help and save, also they hide their favorite toy or something together and at the end of the movie the rest of the boys meet at that place when they grow up and take out toys remembering their friend because he put horse toy