Blackmail(1929) -

: Both a silent version and a sound version exist; the silent version was initially more popular as many theaters lacked sound equipment .

: Frank is assigned to the case and finds evidence of Alice's involvement. A petty criminal, Tracy, witnesses the crime and begins blackmailing them . Blackmail(1929)

: Originally filmed as a silent movie, it was adapted into a "talkie" mid-production. : Both a silent version and a sound

: Alice White (Anny Ondra) argues with her detective boyfriend, Frank, and goes to an artist's studio. When he attempts to rape her, she kills him in self-defense with a bread knife. Blackmail(1929)