Many 1930s comedies were sped up with which type of dialogue, in which actors don't let each other finish?

Which 1930 film portrays World War I trench warfare from the German side? The 1930 film "Anna Christie" was advertised with the line "Garbo" does what? What was the nickname of 1930s gangster George Kelly? Which New York City mayor of 1934–1945, nicknamed "the Little Flower," has one of the city's airports named after him? Which 1931 painting shows three watches that appear to be melting and a fourth swarming with ants? In the 1931 film, Boris Karloff played the monster created by which scientist? Boris Yeltsin was born in 1931 in the Sverdlovsk region, an industrial area in which mountain range? Convicted of tax evasion in 1931, which Chicago gangster later served time in Alcatraz?