Low-key lighting in the context of "Chiaroscuro"

A projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience. Projection screens may be permanently installed on a wall, as in a movie theater, mounted to or placed in a ceiling using a rollable projection surface that retracts into a casing (these can be motorized or manually operated), painted on a wall, or portable with tripod or floor rising models as in a conference room or other non-dedicated viewing space. Another popular type of portable screens are inflatable screens for outdoor movie screening (open-air cinema).

Uniformly white or grey screens are used almost exclusively as to avoid any discoloration to the image, while the most desired brightness of the screen depends on a number of variables, such as the ambient light level and the luminous power of the image source. Flat or curved screens may be used depending on the optics used to project the image and the desired geometrical accuracy of the image production, flat screens being the more common of the two. Screens can be further designed for front or back projection, the more common being front projection systems, which have the image source situated on the same side of the screen as the audience.

Film noir (/nwɑːr/; French: [film nwaʁ]) is a style of Hollywood crime drama that emphasizes cynical attitudes and motivations. The 1940s and 1950s are generally regarded as the "classic period" of American film noir. Film noir of this era is associated with a low-key, black-and-white visual style that has roots in German expressionist cinematography. Many of the prototypical stories and attitudes expressed in classic noir derive from the hardboiled school of crime fiction that emerged in the United States during the Great Depression, known as noir fiction.

The term film noir, French for "black film" (literal) or "dark film" (closer meaning), was first applied to Hollywood films by French critic Nino Frank in 1946, but was unrecognized by most American film industry professionals of that era. Frank is believed to have been inspired by the French literary publishing imprint Série noire, founded in 1945.

Low-key photography is a genre of photography consisting of shooting dark-colored scenes by lowering or dimming the "key" or front light illuminating the scene (low-key lighting), and emphasizing natural or artificial light only on specific areas in the frame. This photographic style is usually used to create a mysterious atmosphere, that only suggests various shapes, often graphic, letting the viewer experience the photograph through subjective interpretation and often implies painting objects or the human body with black non-toxic dyes or pigments.

Renaissance and Baroque, represented by different painting styles including sfumato and chiaroscuro used by artists like Leonardo da Vinci and Rubens), tenebroso (it. dark, mysterious) used by artists such as Caravaggio, Rembrandt, Jusepe de Ribera among others, produced paintings in which black was predominant on the canvas and the light often come from only one source to achieve dramatic scenes.