Subtitles are text derived from either a transcript or screenplay of the dialogue or commentary in films, television programs, video games, and the like, usually displayed at the bottom of the screen, but can also be at the top of the screen if there is already text at the bottom of the screen. They can either be a form of written translation of a dialogue in a foreign language, or a written rendering of the dialogue in the same language, with or without added information to help viewers who are deaf or hard-of-hearing, who cannot understand the spoken language, or who have accent recognition problems to follow the dialogue.