Final answer:
Dialogue is a conversation between two or more people in a movie or piece of fiction. Monologue is when a character speaks out loud when alone. Dialogue, monologue, and narration are important for progressing the story in literature.
Step-by-step explanation:
Dialogue is defined as a conversation between two or more people in a movie. In addition, a fictional piece could have a monologue where a character is speaking out loud when he or she is alone. A character, for example, may contemplate the pros and cons of taking some form of action in a monologue. Dialogue, monologue, and narration progresses the story in literature.