Musical films have been overrepresented in the Best Picture Oscar category. Nine (about 10 percent) of the 89 Oscar-winning films, between 1929 and 2017, have been musicals.
Oscar-winning musicals–chronologically:
The Broadway Melody (1928-9)
The Great Ziegfeld (1936)
An American in Paris (1951)
Gigi (1958)
West Side Story (1961)
My Fair Lady (1964)
The Sound of Music (1965)
Oliver! (1968)
Chicago (2002)
Broadway Melody
Nominations: 3
Awards: 1
Great Ziegfeld:
Nominations: 7
Awards: 1
American in Paris
Nominations: 8
Awards: 6
Gigi:
Nominations: 9
Awards: 9
West Side Story
Nominations: 11
Awards: 10
My Fair Lady:
Nominations: 12
Awards: 8
Sound of Music
Nominations: 10
Awards: 5
Oliver!
Nominations: 11
Awards: 5
Chicago:
Nominations: 13
Awards: 6