Movier
It opens on tonight, near you. And the original-language filter is a switch on the home screen, not a note buried in a description.
This page describes what Movier will do. The first build exists — 2026.8.1, doing a deliberate half of it: what is on release in Italy, a screen per film, search, and a watchlist that tracks titles with no date yet. It has no showtimes, because there is no free, legal source for Italian cinema listings; the changelog says exactly what is in and what is not.
There is nothing to download yet. The self-hosted F-Droid repository that serves these apps is being reorganised and publishes nothing at the moment, and Google Play follows once there is more than half an app to put there. This page will say so when that changes.