I saw Once Upon A Time In Hollywood this year. For free at a preview screening (and it wasn’t crowded, but maybe that was just the promo team).
I’d have to think sometime to arrive at the last movie I paid to see in a theater that wasn’t at a museum.
Nothing like that at the theaters these days. Although it would be interesting. You might find that on youtube and it would be free and you could watch it from the comfort of your living room.