The 3rd installment in the “Magic Mike” series danced its way to the leading of the box office environment charts this weekend with a James Cameron double header, “Avatar: The Way of Water” and “Titanic” (certainly that “Titanic”), looming near behind. “ Magic Mike’s Previous Dance ” attained $8.2 million in its initial weekend in North American theaters, in accordance to studio estimates on Sunday. Cameron’s “Avatar” sequel introduced in an additional $6.9 million whilst the 25th anniversary rerelease of “Titanic” took in $6.4 million from Friday to Sunday. North American moviegoing tends to occur to a halt on Tremendous Bowl Sunday and studios respond strategically, normally releasing films that…