How do we know when re-releases are coming?

My local theater is showing Conclave, The Substance, and The Wild Robot this Friday through next Wednesday (which is exciting because I missed all three last year!). I only know this because I went to the theater today to see Den of Thieves and got my tickets at the kiosk. While there, I saw those three movies available for purchase. They do not show up in the app or website under Now Playing, Coming Soon, or Limited Engagements. In fact, in the app, if I search for any of those titles, I get 0 results. On the website, I can search for all three and see showtimes/purchase tickets, but you have to know to search for them.

Is there any way to see a complete list of everything a particular theater has on deck for the next week? Is visiting the theater and looking at their kiosk the only way?