linguistic:voice_change, information:filtering, linguistic:paraphrasing, quality:correction, information:highlighting
Inter-titles

As motion pictures gradually increased in running time, a replacement was needed for the in-house interpreter who would explain parts of the film to the audience. Because silent films had no synchronized sound for dialogue, onscreen inter-titles were used to narrate story points, present key dialogue and sometimes even comment on the action for the audience. The title writer became a key professional in silent film and was often separate from the scenario writer who created the story. Inter-titles (or titles as they were generally called at the time) "often were graphic elements themselves, featuring illustrations or abstract decorations that commented on the action".