According to Rosenstone, historians are obliged to follow certain "rules" when they write about the past (Rosenstone 2002, 139) What are these rules

According to Rosenstone, historians are obliged to follow certain "rules" when they write about the past (Rosenstone 2002, 139) What are these rules and can and should makers of historical films be expected to conform to all, some or none of them and why? Be sure to answer using concrete examples.