As for "dual audio," I'm assuming you're referring to a version of the movie with two audio tracks, possibly in different languages. Dual audio films are often used to provide language options for viewers who may not be fluent in the primary language of the movie.
As for "dual audio," I'm assuming you're referring to a version of the movie with two audio tracks, possibly in different languages. Dual audio films are often used to provide language options for viewers who may not be fluent in the primary language of the movie.