In an unprecedented move, Disney has issued a warning to viewers about its new "Incredibles" film.\r\n"Incredibles 2," the\u00a0animated Disney blockbuster\u00a0that\u00a0picks up where the original movie left off 14 years ago, has a sequence with the\u00a0villain Screenslaver\u00a0that features bright flashing lights. After the film opened Friday, some theatergoers\u00a0posted on social media\u00a0that the\u00a0superhero cartoon\u00a0could trigger seizures in people with epilepsy, migraines or chronic illness. The Epilepsy Foundation\u00a0even issued a statement\u00a0about concerns that people with epilepsy could suffer a seizure during the movie. "(We) appreciate the efforts some theaters have already made to post warning signs for people waiting to see the movie," the statement said.\u00a0\r\nOn Friday, Walt Disney Pictures sent an advisory to theaters showing "Incredibles 2,"asking them flag\u00a0customers to\u00a0the scene. \u00a0\r\nAMC supervisor Mauricio Mencia, who's worked at the Universal CityWalk location in Los Angeles for the past year, says,\u00a0"I've\u00a0never seen something like that happen."\r\nThe memo, which has been\u00a0shared on social media, says: " 'Incredibles 2' contains a sequence of flashing lights, which may affect customers who are susceptible to photosensitive epilepsy or other photosensitivities."\r\nMencia's theater has informed the staff\u00a0about\u00a0the memo and posted\u00a0the warning\u00a0next to the guest greeter who rips tickets.\r\nAccording to the Epilepsy Foundation, "for about 3 percent of people with epilepsy, exposure to flashing lights at certain intensities, or with certain visual patterns, can trigger seizures. This condition is known as photosensitive epilepsy and it\u2019s more common in children and adolescents, especially those with generalized epilepsy and a type known as juvenile myoclonic epilepsy."\r\nJackie Aker, director of media relations for the Epilepsy Foundation, says her organization had never before called for a movie to issue a photosensitivity warning, but earlier this year asked\u00a0Apple to change a promotional spot for the\u00a0new iPad that had flashing lights that would be unsafe for certain viewers. Apple worked with the foundation to change\u00a0the video.\r\nIn 1997,\u00a0an episode of\u00a0"Pokemon"\u00a0that aired in Japan with flashing lights sent nearly 700 children to the hospital.