Was Joker influenced by Serpico?

Yes. Director Todd Phillips cited "Serpico" as one of the films that influenced "Joker," particularly in its portrayal of a character's descent into chaos within a corrupt society.

Was Joker influenced by Taxi Driver?

Yes. Todd Phillips' "Joker" pays homage to "Taxi Driver" through its portrayal of Arthur Fleck's descent into madness, reminiscent of Travis Bickle's character arc. Phillips has cited "Taxi Driver" as a significant influence on the film.

Joker (2019)

← Inspired by 2 films

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Films that influenced Joker

← Inspired By (2)

Serpico (1973)¹

Taxi Driver (1976)²

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On the Waterfront → Serpico → Joker

On the Waterfront

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Serpico

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Joker

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Sources

Influenced By

Serpico (1973)
"Director Todd Phillips cited "Serpico" as one of the films that influenced "Joker," particularly in its portrayal of a character's descent into chaos within a corrupt society." Newsletter source
Taxi Driver (1976)
"Todd Phillips' "Joker" pays homage to "Taxi Driver" through its portrayal of Arthur Fleck's descent into madness, reminiscent of Travis Bickle's character arc. Phillips has cited "Taxi Driver" as a significant influence on the film." Newsletter source

Joker (2019) was inspired by 2 earlier films — including Serpico and Taxi Driver. Check out the citations below.