Complex sentence: Del Rio emerged in Hollywood in a period ruled by the blond females stars; the few dark.haired stars at the time were Theda Bara and Pola Negri, women equally exoticized within the film frame or cast as vamps through publicity.
Split into simpler sentences: Del Rio emerged in Hollywood in a period ruled by the blond females stars. The few dark.haired stars at the time were Theda Bara and Pola Negri, who were equally exoticized within the film frame or cast as vamps through publicity.