- HD 1080
- Runtime: 86m.
- Status: Released
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- Languages: en
- Country: United States of America
- Director: James Flood, Elliott Nugent
- Stars: Warren William, Sidney Fox, Aline MacMahon, John Wray, Mae Madison
- keywords: false accusations, prosecutor, defense attorney, pre-code, courtroom drama
- Production_studio: Warner Bros. Pictures
- Slogan: He sold his soul to criminals and willed his honor to the devil!
- The The Mouthpiece is featured in the top rankings of 1932
- #61 in Top Drama Movies of 1932
A prosecutor quits his job and becomes a defense attorney when he finds out that a man he got convicted and executed was actually innocent.