How does a green light differ from a red light in film production?

In film production, the concept of a green light is crucial as it denotes that a project has received the necessary approvals and can move forward into the next stages of development and production. When a project gets the green light, it means that funders, producers, or other stakeholders have reviewed it and are satisfied with the elements in place, such as the script, cast, and budget, allowing the production team to begin work.

On the other hand, a red light symbolizes a halt in the project. This can occur for various reasons, such as a lack of funding, concerns about the project's viability, or a need for further revisions. Understanding this distinction is vital for anyone involved in film production, as it directly affects the timeline and progress of a project.

The other options do not accurately capture the meaning of green light and red light in the context of film production, as they pertain to different aspects or imply meanings unrelated to project approval and continuation.