There’s a useful roundup in the i-Paper showing the scale of the studio expansion and growing physical production capacity that the UK has, in contrast to the roster of available skills which will leave an estimated “40,000 workers needed to crew productions by 2025”
“Low-budget independent films, in the £3m to £6m range, are struggling the most. One producer reported a search through 72 first-assistant directors before finding one available candidate, who then quoted a wage 40 per cent above what was assigned in the budget.”
There’s also a useful map in there showing where all of the work is being done.