Sound film "The Clue of the New Pin", a British Lion production using the sound-on-disc British Photophone system. In May, "Black Waters", a British and Dominions Film Corporation promoted as the first UK all-talker, received its initial trade screening; it had been shot completely in Hollywood with a Western Electric sound-on-film system. None of these pictures made much impact. 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,
Edward Hitchcock Randy Moore described Hitchcock as "America's leading advocate of catastrophism-based gap creationism." Hitchcock left his mark in paleontology. He discovered some of the first fossil fishes in the United States. He published papers on fossilized tracks in the Connecticut Valley, including Eubrontes and Otozoum, that were later associated with dinosaurs, though he believed, with a certain prescience, that they were made by gigantic ancient birds. In the Hitchcock Ichnological Cabinet he established a remarkable collection of fossil footmarks. His son, Edward "Doc" Hitchcock, named one of the earliest dinosaurs discovered in North America and the United States, "Megadactylus polyzelus". Later