The film may have been more effective had the producers chosen actors who were about a decade older. The four central actors simply appeared too young for the roles in which they were cast, thus the humor which was founded upon their advanced ages did not ring true. On the other hand, the supporting cast provided some brief moments of comedy. Notably, Mr. Sandoval and Ms. Kazan, both found plenty of laughs by overplaying their stereotypical characters. A less successful stereotype implied in the movie was in the hopeless resignation that many seniors might feel regarding the rest of their life.
Life is designed to be lived right until the end.
Age shouldn't restrict or dampen our desire to experience or contribute to life as long as we retain the physical ability. Moses was eighty years old when he led the children of Israel out of captivity. The resignation of the old is often exasperated by the disrespect or dismissal younger generations show to them by acting or speaking without thinking or reflecting on what those elders have accomplished or how they have lived. It is a mistake oft repeated by the arrogance of youth.