Possible directions

Possible directions-

What are the messages behind musicals from the classical era (1930-1960)?
What are the messages behind musicals from the post-classical era (1960-ongoing)?
How are women presented in musicals from the classical era?
The dying musical- how relevant is the genre in modern times?
Musicals and showbusiness.
Musicals and the American Dream.

Candidates:
Classical- 'Singing in the Rain', 'The Wizard of Oz', 'An American in Paris', 'Gentlemen Prefer Blondes'
Post-classical- 'Rocky Horror Picture Show', 'Grease', 'Saturday Night Fever', 'West Side Story'
Women- 'The Wizard of Oz', 'Cabaret', 'West Side Story', 'Guys and Dolls'
Relevance- 'The Wizard of Oz',  'Rocky Horror Picture Show', 'Nine', 'Grease', 'Les Miserables'
Showbusiness- 'Cabaret', 'Singing in the Rain', 'All That Jazz', 'A Star is Born'
American dream-'The Wizard of Oz', 'West Side Story', 'An American in Paris', 'Rocky Horror Picture Show'