This film features one of the earliest uses of a hidden camera in film-making. In the scene where
Zasu Pitts leaves the junk shop after discovering the dead body she rushes into a real street and into real passers-by who were unaware they were being filmed. A crowd gathered, police turned up to the scene and it is said that a reporter called in the 'murder' to his editor. This coincides with
Dziga Vertov 's _Kino-Eye (1924)_ which also used hidden camera techniques for the first time.
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