A cameo is when a well-known actor or a celebrity plays a small part in a movie not about them. That can be very brief; as an example, the famed Robert Redford appears in Avengers: Endgame for about 10 seconds. Leonard Nimoy has a similarly brief bit in Star Trek Into Darkness.
I'm curious if there have been shorter cameos; particularly when compared to the fame of the actor. Has anyone been on screen for less than five seconds, before vanishing and never playing any other part in the film?
Some qualifications:
- It cannot be footage that originated from a different production, or from the public domain. Robert Downey Jr. is briefly shown on a television in Birdman, but the footage in question was from Iron Man 1 (I think). The actor must have actually come to the production of the movie in question and shot their scene.
- Exclude stingers that are separate from the rest of the movie and designed to tease more of the character/actor, who is planned have a greater role in the franchise.
- Exclude photographs, paintings, etc, that depict a known actor. The person must be really there.
- Exclude people deeply involved in the production of said film; e.g. a director's cameo.