The first successful European dramatic talkie was the all-British "Blackmail". Directed by twenty-nine-year-old Alfred Hitchcock, the movie had its London debut June 21, 1929. Originally shot as a silent, "Blackmail" was restaged to include dialogue sequences, along with a score and sound effects, before its premiere. A British International Pictures (BIP) production, it was recorded on RCA Photophone, General Electric having bought a share of AEG so they could access the Tobis-Klangfilm markets. "Blackmail" was a substantial hit; critical response was also positive—notorious curmudgeon Hugh Castle, for example, called it "perhaps the most intelligent mixture of sound and silence we have yet seen."