Why Did The Film Industry Became Popular?
The film industry became popular during the 1920s to the 1930s because most of the citizens spend more money to satisfy thier entertainment compared to the past. Also, the new rich fueled the technological inventionsm, which results in the boom of popularity in entertainments, such as movies, radio programs, and sports.

The increased financial prosperity of the 1920s gave the Americans a larger porportions of income to spend on entertainment. Earnings increased greatly in the 1920s, so people have more money to spend on their amusement. By the way, the influx of cash helped to improve the technologies, which led to new ways to spend spare time having fun and buying new products.