One of the best reviews I read about this movie (and it's written by a man who love this movie) :
We all have dreams that have not been realized. We all need Shirley's courage to do as much as we can to live these dreams before we go off to the other place.
This movie taught me about life. It's not too late to be happy, to be in love, to smile every day and mean it. No matter what age you are.