What is the function of a film's climax?

The function of a film's climax is to present the turning point of the story and confront the central conflict. In narrative structure, the climax is often the most intense and critical moment, where the protagonist faces the main challenge or conflict that has been building throughout the film. This moment typically leads to a significant change or revelation that alters the course of the narrative, thereby engaging the audience at an emotional peak.

While introducing the main characters happens much earlier in the story, and resolving all subplots and providing the final resolution occur after the climax, the essence of the climax is its role as a pivotal moment in the narrative where tensions peak and decisions are made, leading directly to the resolution of the film. This makes the climax a crucial component of the overall storytelling arc, enhancing the viewers' investment in the characters and their journeys.