Film debut of Jayne Mansfield.
Frank Garland's impressive collection of Impressionist art actually was loaned to the film by collector Edward G. Robinson. Included are works by Gaugin, Degas, Duran, and Robinson's wife, Gladys Lloyd.
In the scene where 'Edward G. Robinson''s character enters the office of DA Ralph Ford (Edward Platt) you can see the Maltese Falcon from John Houston's 1941 film on the barristers bookcase near the entrance door.
The main character is very loosely based on Bill "The Great Mouthpiece" Fallon, one of the great criminal defense attorneys of the 1920s, who successfully defended gambler Arnold Rothstein in the "Black Sox" Fix of the 1919 World Series.