In a film, dialog is the collection of spoken words that the actors say to each other.
karate kid
The film was written by Guillaume Laurant .
Absolutely a script can contain no dialog. Film is a visual medium, after all, and a viewer must be able to follow the story without any words. The 2011 film, The Artist, is a great example of a film without any -- or much -- dialog. Silent movies produced pre-late-1920s are also good examples of stories without dialog. They contain dialog, which is presented as text during the scene, but often the text is unnecessary because so much of the story can be understood visually. Plus, the 2015 movie, Minions, is another example of 'no dialog' because the characters' dialog is essentially gibberish.
A screenwriter writes the dialog in a film. There are scenes when a director and actor make improvised or impromptu changes to written dialog, meaning in that case, what you hear on film is not what is written on the page.
John Hubley
Automated Dialog Replacement, (also referred to as "Looping"): The replacement of dialog in post-production of a film or video. This is done with the vast majority of feature sound tracks.[1]
Excepting possible background music, the film was silent. that is no spoken dialogue.
That Would be 'Quest for Fire'. It won the 1981 Oscar for Costume Design.
The film Blood Diamond, link below, may have introduced people to the existence of blood diamonds, who did not know about them before seeing the film. At least, it provoked dialog and discussions about diamonds and their sources.
Essentially dialog is dialog, wherever it's found. In literature, spoken words are identified within quote marks. The context of the dialog is contained within the context-describing text. In film, spoken words -- by actors -- are contained within the context of the rest of the story being told visually.
insert a dialog choice a couple times into the dialog
Habib Faisal won the Filmfare Award for Best Dialogue in 2011 for the film Do Dooni Chaar.