Many recommend that all Bosniak category III lesions undergo surgical removal and evaluation, as 40 percent to 50 percent will be cancer.

CNN: Could my kidney cysts be cancerous?

Films that best retain a Hong Kong style, Kerr maintains, likely carry "Category III" (under 18 not allowed) ratings: Movies that are "grown up and smart, " she says.

CNN: Hong Kong movies refocus to mainland

In that category, Dark Souls II is a strong contender as is Dragon Age III.

FORBES: Reactionary: Assembling Your Dream PlayStation 4 Launch Lineup