Since movie musicals’ glory days in the 1930s, the second half of the 20th century saw a steep decline in the popularity and production of musicals in film.
According to Broadway World, “Musicals fell out of fashion in the 1970s and 1980s as several high-profile box office failures made studios wary of investing in the genre. In the 1930s, around 10% of all films were musicals. Today, that number sits below 1%.”