You would never know what the setting is,if the characters are not known and if the settings are unknown the story would have to turn to the theme or the plot. when the charaters are unknown the effect is losing place in the story. It might be confusing but if it help letme know!!
The best answer for the question is the theater. The motion pictures offered an escape from the drudgery of everyday life in the 1930s, and the theater suffered at the hand of the new technology.