Subtitles in English: What are they called?

Subtitles are the text displayed on the screen of a movie or video, providing a written translation of the spoken dialogue. They are often used for viewers who are deaf or hard of hearing, but can also be helpful for learning a new language or understanding dialogue in a noisy environment. 'Subtitles' is the most common English term for this concept, though some people may also use 'captions' which are generally used for a transcript of the dialogue with additional information like sound effects or speaker identification.