I went to look for lists of great G rated movies for children, and was shocked that this wasn't on it. It's basically one of the best animated movies ever made. Great story, wonderful characters, good music, there's nothing it lacks. So to find it rated 7.6 by the IMDB faithful, shocked me.
Watch this movie. Buy it when you can. You and your children, and grandchildren, will watch it over, and over again, as we have.