What is a "film reel" used for?

A film reel is specifically designed to hold film for projection or storage. This cylindrical device can accommodate various types of film formats and is crucial in the filmmaking and exhibition processes. When films are shot on physical film stock, they are often wound onto reels, which allows for easy handling and transport. During projection, the film reel enables the film to be fed through the projector smoothly, ensuring a continuous and coherent screening experience.

In contrast, directing live performances pertains more to stage management and live theater, which does not involve the physical film components associated with a film reel. Storing audio recordings and creating graphics for films involve different mediums and formats, such as digital or magnetic storage devices for audio, and graphic design software for visual elements, respectively. Thus, the primary role of a film reel is fundamentally tied to the preservation and projection of film, underscoring why it is the correct answer.