A night at the movies?

I have no idea why this happened or where Charlotte got the idea from, but as we were unpacking groceries she set up the toilet paper package as a "movie screen" and some chairs as theater seats.  Then, she sat Peter down and starting singing and clapping.  He was confused at first, but soon he joined in on the game.

This went on for about 5 or 10 minutes . . .

. . . then ended as mysteriously as it began.  Those children are so odd.  Amusing, but odd.