A special kind of film that was a mainstay in cinemas from the 1910s to the 1950s.
The basic structure is a film that is presented in consecutive installments in a theatre, with the expectation that the audience would come each week to see the whole story through. As such, it was famous for its fight scenes and its cliffhangers (most of which were notoriously poor).
The genre first started with [...] [tvtropes.org]