Storyboards help filmmaking teams visualise a film and how to tell the film’s story through images. In a film, the audience follows a story not just through character's dialogue, but also through their actions. Even objects and settings help tell a story.
You can make decisions about how things will look by creating a storyboard. Each panel in a storyboard represents a camera shot and therefore what the camera will see and show. You do not have to recreate every frame of a film in a storyboard; that would take forever!
Filmmaker Robert Rodriguez is known for making video storyboards, especially when planning his action sequences. You can see the director at work below.