What literature does the film belong to?

Movies belong to audiovisual literature.

Audio-visual files refer to files formed by recording multimedia information such as sound and images on optical materials and magnetic materials by means of audio recording, video recording, photography and video recording. Also called audio-visual files, such as audio-visual tapes, records, slides, laser discs, etc. Its characteristics are vivid and intuitive, especially suitable for recording complex information and natural phenomena that are difficult to describe with words and symbols, but its production and reading require special equipment.

Therefore, film belongs to a way of recording images and belongs to audio-visual materials.