Pink film (ピンク映画, Pinku eiga or Pink eiga^?) is a style of Japanese softcore pornographic theatrical film. Films of this genre first appeared in the early 1960s, and dominated the Japanese domestic cinema from the mid-1960s through the mid-1980s. In the 1960s, the pink films were largely the product of small, independent studios. In the 1970s, some of Japan's major studios, facing the loss of their theatrical audience, took over the pink film. With their access to higher production-values and talent, some of these films became critical and popular successes. Though the appearance of the AV (adult video) took away most of the pink film audience in the 1980s, films in this genre are still being produced.

The pink film, or "eroduction" as it was first called, is a cinematic genre without exact equivalent in the West. Though called pornography, the terms "erotica," "soft porn" and "sexploitation" have been suggested as more appropriate, although none of these precisely matches the pink film genre. Due to the nature of Japanese censorship laws, the display of genitals, and even pubic hair, were long-held taboos in the genre. This restriction forced Japanese filmmakers to develop sometimes elaborate means of avoiding showing the "working parts", as Richie puts it. In order to work around this censorship, most Japanese directors positioned props—lamps, candles, bottles, etc.—at strategic locations to block the banned body parts. When this was not done, the most common alternative techniques are digital scrambling, covering the prohibited area with a black box or a fuzzy white spot, known as "fogging".

Pink is any of the colors between bluish red (purple) to red, of medium to high brightness and of low to moderate saturation. Commonly used for Valentine's Day and Easter, pink is sometimes referred to as "the color of love." The use of the word for the color known today as pink was first recorded in the late 17th century.

Although pink is roughly considered just as a tint of red, most variations of pink lie between red, white and magenta colors. This means that the pink's hue is somewhat between red and magenta.

Roseus is a Latin word meaning "rosy" or "pink." Lucretius used the word to describe the dawn in his epic poem On the Nature of Things (De Rerum Natura). The word is also used in the binomial names of several species, such as the Rosy Starling (Sturnus roseus) and Catharanthus roseus. In most Indo-European languages, the color pink is called rosa. In Persian, it is called "Souraty," meaning "Color of the face." In Hindi, it is called "Gulabi," meaning "Colour of a rose."

The color pink is named after the flowers called pinks, flowering plants in the genus Dianthus. The name derives from the frilled edge of the flowers—the verb "to pink" dates from the 14th century and means "to decorate with a perforated or punched pattern" (possibly from German "pinken" = to peck). As noted and referenced above, the word "pink" was first used as a noun to refer to the color known today as pink in the 17th century. The verb sense of the word "pink" continues to be used today in the name of the hand tool known as pinking shears.

A film, also called a movie or motion picture, is a series of still or moving images. It is produced by recording photographic images with cameras, or by creating images using animation techniques or visual effects. The process of filmmaking has developed into an art form and industry.

Films are cultural artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Film is considered to be an important art form, a source of popular entertainment and a powerful method for educating – or indoctrinating – citizens. The visual elements of cinema give motion pictures a universal power of communication. Some films have become popular worldwide attractions by using dubbing or subtitles that translate the dialogue into the language of the viewer.

Films are made up of a series of individual images called frames. When these images are shown rapidly in succession, a viewer has the illusion that motion is occurring. The viewer cannot see the flickering between frames due to an effect known as persistence of vision, whereby the eye retains a visual image for a fraction of a second after the source has been removed. Viewers perceive motion due to a psychological effect called beta movement.