[custom_adv] An actress is a person who portrays a character in a performance. The actor performs "in the flesh" in the traditional medium of the theatre or in modern media such as film, radio, and television. [custom_adv] The analogous Greek term is, literally "one who answers". The actor's interpretation of their role—the art of acting—pertains to the role played, whether based on a real person or fictional character. [custom_adv] Interpretation occurs even when the actor is "playing themselves", as in some forms of experimental performance art. [custom_adv] The actress performs "in the flesh" in the traditional medium of the theatre or in modern media such as film, radio, and television. The analogous Greek term is, literally "one who answers". [custom_adv] A film, also called a movie, motion picture, moving picture, or photoplay, is a series of still images that, when shown on a screen, create the illusion of moving images. (See the glossary of motion picture terms.) [custom_adv] This optical illusion causes the audience to perceive continuous motion between separate objects viewed in rapid succession. The process of filmmaking is both an art and an industry.