What does the term "curtain line" refer to in theatre?

The term "curtain line" specifically refers to the imaginary line on the stage where the curtain would close if it were drawn. This line is significant in theatre as it helps define the boundary between the stage and the audience. The curtain line serves as a reference point for the placement of set pieces, the movement of actors, and various aspects of stage direction.

Understanding the curtain line is essential for stage management and design because it aids in visualizing how the space will be utilized during a performance. It plays a crucial role in determining sightlines for the audience and ensuring that all visual and performative elements are effectively aligned within the theatrical space. This context highlights the fundamental aspects of staging and the importance of spatial awareness in theatre production.