"Downton Abbey: The Grand Finale" acts as the opulent culmination of the 15-year journey spent with the aristocratic Crawley family and their loyal downstairs staff. The upstairs-downstairs factions have always rolled with the rising tides of change as best they could, but "The Grand Finale" sees them having to grapple with its inevitability arriving at their front door in unexpected ways. As someone who's followed this franchise since it debuted on PBS' Masterpiece Theater and gave a positive review to the second film ("Downton Abbey: A New Era"), "The Grand Finale" felt like a huge wasted opportunity. It largely acts as a superfluous and predictable coda for die-hard "Downton Abbey" fans who have stuck by the property for the past decade and a half. I seem to be an outlier, though, as indicated by the film's 92% critical rating on Rotten Tomatoes, in addition to its $77 million pull at the worldwide box office.