The Ace of Scotland Yard is a 1929 Universal movie serial. It was the first partial sound serial released by Universal Pictures. The film was released in September 1929. It was a part-talkie serial using music and sound effects.
This serial was a sequel to the 1927 12-chapter silent Universal serial Blake of Scotland Yard.
Retired CID inspector Angus Blake tries to prevent a female jewel thief named the Queen of Diamonds from stealing a valuable ring which, according to legend, carries a curse.
In addition to the sound version, a silent version of the cliffhanger was made for theatres not equipped to display sound films. Harold M. Atkinson wrote the serial and Ray Taylor directed it.
Movie Age gave a positive review of the serial after watching the first three chapters, noting that "the picture carries a punch" and "if the succeeding chapters measure up with the first three, this serial is going to be a wow." The Film Daily declared it "a gripping serial [that] carries a lot of fast action and suspense", specifically stating: "The camera work is exceptionally good, and the direction by Ray Taylor is aces."