Sorry for derailing the thread, Mark, but there can't be many of us who've turned a novel into a poem, or so it appears. You're the Gold Medallist!
But it's clear that watching La Cabina is a life-changing experience! Will your students be saying something like this in twenty or thirty years' time:
"One very hot June day, way back in 2018, we watched a film that scared us shitless. Thank goodness those "phone box" things all disappeared by 2022; I would never have gone inside one!"