‘FURIOSA: A MAD MAX SAGA’ Rated R for sequences of strong violence, and grisly images. What it’s about: The prequel film to “Mad Max: Fury Road” fleshes out the tragic and action-packed backstory of war-rig driver Furiosa. The kid attractor factor: The action may be a draw for teens, but there is not much appeal for kids. Good lessons/bad lessons: Hope can be found in the unlikeliest of places…