This film is cited as one of the catalysts for the creation of the Motion Picture Production Code.
When previewed in Chicago, The Trial of Mary Dugan earned a "pink-ticket" (an adults only classification) from the Chicago Board of Censors. Then, due to pressure from religious activists (derogatorily known as "bluenoses"), the board banned the film completely.
Claud Allister's debut.
Remade twice - by MGM (1941) and BBC Television (1957).