The document discusses the evolution of horror films over different decades from the 1920s to the 2000s. Early horror films of the 1920s were dark, shadowy productions featuring vampires and monsters. In the 1930s, the introduction of sound allowed films like Dracula and Bride of Frankenstein to utilize elements like dialogue. Horrors of the 1940s in America featured human-animal hybrid characters, while the 1950s saw a rise in films about mutated creatures influenced by fears around radiation. The 1960s saw a shift to human monsters as reflected in Psycho, and slasher films emerged in the 1970s along with a focus on disturbed children. Gore and special effects became prominent in the 1980s. More intelligent horror