Complex sentence: The film, which was written by Harry Behn and Howard Estabrook, centers on the combat pilots of World War I. The picture was released by United Artists and, despite its initial poor performance at the box office, eventually earned its production costs twice over.
Split into simpler sentences: The film, which was written by Harry Behn and Howard Estabrook, was released by United Artists. Despite its initial poor performance at the box office, the film eventually earned its production costs twice over.