Movies 101: "Nightmare Alley" and "Mass"

Movies that transmit powerful emotions comes in many forms, but two main categories are those that trend toward the mysterious and those that dwell in the realm of the intensely realistic. This week Dan Webster, Nathan Weinbender and Mary Pat Treuthart discuss two films that portray emotional power in two different ways: Guillermo del Toro’s adaptation of the 1946 noir novel “Nightmare Alley,” and writer-director Fran Kranz’s film “Mass,” which is a study of two couples forever connected because of a tragedy.