The lawsuit alleges that AMC movie theatres are failing to provide properly functioning audio description technology. When properly working, audio description technology enables people who are blind or low vision to participate in and enjoy the experience of going to the movies. This technology lets these movie-goers know what is happening in scenes without dialogue or scenes with significant visual elements.

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http://www.accessibilitynewsinternational.com/class-action-lawsuit-challenges-amcs-discrimination-against-blind-movie-goers/