In a recent interview, he described the new measures the cast and crew are having to get to grips with.
“Some days it [the perspex] works really well,” he said of the many sheets.
“Other times, it’s been a pain.
“If rain gets on the perspex, you can’t shoot through it and you can only wipe it dry with a certain type of cloth.
He added that inside shots can sometimes result in reflections from the see-through plastic, meaning everything is taking a long time to get right.