LOS ANGELES (Variety.com) - ?Aquaman? easily retained its reign in North America for the second weekend in a row, dominating box office charts with $51.5 million from 4,125 locations. Cast members Jason Momoa, Nicole Kidman and Amber Heard pose at the premiere for "Aquaman" in Los Angeles, California, U.S., December 12, 2018. REUTERS/Mario Anzuoni That marks a decline of just 24 percent from its opening weekend of $72 million and brings the DC superhero tentpole past $188 million in the states.