Joker (2019)

Trivia: While Arthur is getting made up to go on the TV show, with the mirror and the lamps you can see Batman's face.

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Trivia: Murray Franklin's show is, as displayed on the TV in the hospital, on channel 3, the same channel The Jerry Langford Show was in King of Comedy. (00:59:25)

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Trivia: Arthur takes Sophie to a place for dinner on the street Jerome, a small reference to Jerome Valeska, a character who becomes the Joker in the Gotham TV show.

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Trivia: The news says something about giant rats around the city. While Arthur is talking with his boss on the phone on the street around the corner a big rat passes by (00:28:55). The rats appear also by the garbage bin when Arthur walks past the dead Wall Street guy (00:34:05) and when Bruce is crying over his dead parents (1:53:30).

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Trivia: Arthur makes a smile with his hands around his mouth as a reference to the film The Man Who Laughs.

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Trivia: The detectives who are investigating Arthur throughout the movie are Detective Garrity and Detective Burke. In "The King of Comedy", inspiration for this movie, Rupert Pupkin was investigated by inspector Gerrity and Captain Burke.

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Trivia: The friend of Arthur, Gary, resembles Gaggy, a character that helps the Joker in the Batman #186 comic book.

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Trivia: The sequence of the Joker killing a person on TV was also seen in Frank Miller's graphic novel The Dark Knight Returns.

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Trivia: Arthur's dressing room for the talk show is 404. Batman #404 was the first section of the Batman: Year One storyline, covering the early days of Batman's crime fighting.

Trivia: The social worker who talks with Arthur has the last name Kane as a reference to Bob Kane creator of Batman and the Joker.

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Trivia: Brett Cullen (Thomas Wayne) played a small role in The Dark Knight Rises.

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Trivia: Arthur's joke "When I was a little boy and told people I was going to be comedian, everyone laughed at me. Well no one's laughing now" is a near-direct copy of a joke from late British comic Bob Monkhouse.

Trivia: The license plate on the police car that takes the Joker to jail is 9189, a small reference to 1989's Batman film.

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Trivia: The guy in the Waynes' mansion that helps Bruce isn't named onscreen, but is credited as Alfred Pennyworth, the butler of the family and future helper of Bruce as Batman.

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