Alatar . .that is one cute story ./......
you asked if we do the same and the answer is YES YES YES. I have a grandson who will be six in a few weeks. For some strange reason unknown to me, he just loves the LOTR movies. Go figure. He has seen them with me at least dozens of times. He can quote the lines as the film rolls.
Sometimes we go up to the local park where they have a playscape with a bridge. We do the "you shall not pass" routine on a regular basis. The playscape has a mediaval castle look so he says it is Helms Deep.
We also play LOTR quite alot. He and I act out scenes from the films including the scene where the Corsairs try to enter Gondor, Sam battling with Shelob, Boromir battling the Uruk-hai, and the decapitation of the Mouth of Sauron. In every reenactment, he is always the forces of good and I am the bad guys.
Love those kids cause they grow so very fast. Sounds like you already know that.
Your story made me smile and feel very good.