After anecdotal warnings circulated on social media, Disney has issued an official seizure warning for Incredibles 2. Both the film and the trailer contain flashing or strobe light effects, which can cause seizures for some epileptic viewers; the Epilepsy Foundation spoke out about the issue, and a petition called for Disney to include a visual warning about the lights.
On Friday, Disney asked theaters showing the movie to include such a warning, reports CNBC, which calls it an "unprecedented" move by the company. The lights can also affect people who suffer from migraines or have other conditions causing them to be photosensitive.
Disney's official memo reads, "Incredibles 2 contains a sequence of flashing lights, which may affect customers who are susceptible to photosensitive epilepsy or other photosensitivities."
This article originally appeared on Newser: Disney Issues Seizure Warning for Incredibles 2