Dubbing, in filmmaking, the process of adding new dialogue or other sounds to the sound track of a motion picture that has already been shot. When a foreign language is dubbed, the translation of the original dialogue is carefully matched to the lip movements of the actors in the film. ...

How are movies dubbed?

To dub a movie you´ll need the voice of other actors who speak a foreign language and an audio-editing procedure on the original footage to include the alternate language recordings of the script. It´s not only a translation but an adaptation of the movie content to an entirely different tongue.

Is it legal to dub a movie?

There are legal and authorized ways to dub a film in a regional language and not get sued over it or not infringe the producer's copyright.