Totally interesting insight into the cinema world. My only questions is why they waited so late to test if the film would play? (I am sure there is a technical reason.)
FTA: "The KDM unlocks the content of the file and allows the cinema to play the film. It is time sensitive and often is only valid from around 10 minutes prior to the screening ..."
Without the KDM being unlocked they can't test it, so the earliest opportunity is 10 minutes before the screening.
