Complex sentence: The enormous worldwide box office success of his Charlie Chan film led to more, with Oland starring in 16 Chan films in total; the series, Jill Lepore later wrote, "kept Fox afloat" during the 1930s.
Split into simpler sentences: The enormous worldwide box office success of his Charlie Chan film led to more, with Oland starring in 16 Chan films in total. The series, Jill Lepore later wrote, "kept Fox afloat" during the 1930s.