Coming soon to this theatre ⋆ Cladrite Radio
Every movie buff knows that coming attractions have been around for decades, but they've not always been filmed. The earliest on-screen announcements of pictures that were to soon to play at a given theatre, back in the days of silent pictures, came in the form of painted glass lantern slides that were projected on the silver screen between showings of that night's feature picture. Examples of those slides still exist, and are considered highly collectible.