Complex sentence: It was produced by Elio Scardamaglia, Francesco Scardamaglia and Luciano Martino; with the screenplay written by Martino and Ernesto Gastaldi from their own story.
Split into simpler sentences: It was produced by Elio Scardamaglia, Francesco Scardamaglia and Luciano Martino;. The screenplay was written by Martino and Ernesto Gastaldi from their own story.