What is the "fourth wall," and how can an actor use it to create a connection with the audience?

In theater and film, the "fourth wall" refers to the imaginary boundary between the actors and the audience. When an actor breaks the fourth wall, they are acknowledging the presence of the audience, essentially blurring the lines between the fictional world on stage or on screen and the real world. Breaking the fourth wall can be an effective tool for an actor to create a connection with the audience. It can allow the actor to direc....