Complex sentence: The original "Sparkle", produced by The Robert Stigwood Organization in 1975 and released by Warner Bros. Pictures in 1976, starred Philip Michael Thomas, Irene Cara, Lonette McKee and Mary Alice, with songs and score composed and produced by Curtis Mayfield.
Split into simpler sentences: The original "Sparkle was" produced by The Robert Stigwood Organization in 1975 and released by Warner Bros. Pictures in 1976. It starred Philip Michael Thomas, Irene Cara, Lonette McKee and Mary Alice, with songs and score composed and produced by Curtis Mayfield.