What action-adventure film by the Hungarian Korda brothers, also featured the  first soundtrack album of a film's orchestral score?
Soundtrack album:  The first soundtrack album of a film's orchestral score was that for Alexander Korda's 1942 film "Jungle Book", composed by Miklós Rózsa. Jungle Book (1942 film): Jungle Book is a 1942 independent American Technicolor action-adventure film by the Hungarian Korda brothers, based on a screenplay adaptation by Laurence Stallings of Rudyard Kipling's "The Jungle Book", about a wild boy who is kidnapped by villagers who are cruel to animals as they attempt to steal the jungle's lost treasure that possesses people.
Jungle Book