@fidgety there is an anomaly in my country (UK) where content for /television/ is scanned by an electronic flash patten analyser, there are rules from Ofcom (UK Communications Ministry) about how much flashing can be included (and it needs warnings if it is), but I can't easily find the rules for movies shown at the cinema, and I'd thought by now the whole lot would be harmonised at least across Europe and Asia (even if USA is reluctant to impose or even suggest any regulations)
@vfrmedia
You'd be surprised how many American shows and commercials have flashing lights without any warnings.
Considering that this is potentially life-threatening, it's absolutely unfathomable. But, this is what I have to deal with.