What's Up With the Ending?
We're snapped out of our romantic reverie back to the present day when the grandpa finishes the book. Just when we think the movie's all but wrapped up, there's a moment when the grandfather turns to leave, and the grandson asks him if he'll come back the next day and read the book to him again, and the grandfather says with a twinkle in his eye, "As you wish."
Whoa. Wait a sec. Are we supposed to believe that this old guy used to be Westley? Is this little mug to the camera his way of letting us in on his secret?
Some secret that would be. Especially considering that Florin is an imaginary place, and even if it did exist, the events of the story would have taken place hundreds of years earlier. The grandfather looks up there in years, but he doesn't appear to have been mummified, for goodness sakes.
But he might be sort of Westley. Like…he never did any swashbuckling personally, and he was probably never brought back to life by a wild-haired weirdo in a thatch hut, but maybe he wanted to read this story to his grandson in the first place because it was very much like his story. Maybe he had a similar great love in his life. Perhaps he always strived to combat the forces of evil in his own dealings, on an admittedly smaller level. It's possible he has even always shared an intense dislike of oversized rodents.
So while he isn't literally Westley, he might be a kind of metaphorical representation of the romantic hero. It could be that Grandma was quite the looker.
On the other hand, maybe he was just being clever…