A cum shot is the depiction of human ejaculation, especially onto another person. The term is usually applied to depictions occurring in pornographic films, photographs, and magazines. Unlike ejaculation in non-pornographic sex, cum shots typically involve ejaculation outside the receiver's body, allowing the viewer to see the ejaculation in progress. Facial cum shots (or "facials") are regularly portrayed in pornographic films and videos, often as a way to close a scene. Cum shots may also depict ejaculation onto another performer's body, such as on the genitals, buttocks, chest or tongue.

The term is typically used by the cinematographer within the narrative framework of a pornographic film, and, since the 1970s, it has become a leitmotif of the hardcore genre. Two exceptions are softcore pornography, in which penetration is not explicitly shown, and "couples erotica", which may involve penetration but is typically filmed in a more discreet manner intended to be romantic or educational rather than graphic. Softcore pornography that does not contain ejaculation sequences is produced both to respond to a demand by some consumers for less-explicit pornographic material and to comply with government regulations or cable company rules that may disallow depictions of ejaculation. Cum shots typically do not appear in "girl-girl" scenes (female ejaculation scenes exist, but are relatively uncommon); orgasm is instead implied by utterances, cinematic conventions, or body movement.

Cum shots have become the object of fetish genres like bukkake, in which the cum shot replaces the sex act completely.

A cum shot may also be called a cumshot, come shot, cum blast, pop shot or money shot.

Originally, in general film-making usage the term money shot was a reference to the scene that cost the most money to produce; in addition, the inclusion of this expensive special effect sequence is being counted on to become a selling point for the film. For example, in an action thriller, an expensive special effects sequence of an explosion might be called the "money shot" of the film. The use of money shot to denote the ejaculation scene in pornographic films is attributed to producers paying the male actors extra for it. The meaning of the term money shot has sometimes been borrowed back from pornography by the film and TV industry with a meaning closer to that used in pornographic films. For example, in TV talk shows, the term, borrowed from pornography, denotes a highly emotional scene, expressed in visible bodily terms.

Although earlier pornographic films occasionally contained footage of ejaculation, it was not until the advent of hard-core pornography in the 1970s that the stereotypical cum shot scene became a standard feature—displaying ejaculation with maximum visibility. The 1972 film Behind the Green Door featured a seven-minute-long sequence described by Linda Williams, professor of film studies, as "optically printed, psychedelically colored doublings of the ejaculating penis". Steven Ziplow's The Film Maker's Guide to Pornography (1977) states:

There are those who believe that the come shot, or, as some refer to it, the "money shot," is the most important element in the movie and that everything else (if necessary) should be sacrificed at its expense. Of course, this depends on the outlook of the producer, but the one thing is for sure: if you don't have the come shots, you don't have a porno picture.

Cum shot scenes may involve the female actor calling for the shot to be directed at some specific part of her body. Cultural analysis researcher Murat Aydemir considers this one of the three quintessential aspects of the cum shot scene, alongside the emphasis on visible ejaculation and the timing of the cum shot, which usually concludes a hard-core scene.