The long Christmas weekend is underway with Aquaman, Warner Bros.'s latest entry into their DC Extended Universe, topping the charts, on its way to a $100+ million five-day opening. Meanwhile, Disney's Mary Poppins Returns and Paramount's Bumblebee finished in runner-up positions over a weekend that played relatively similarly to the same weekend last year, though given the holiday timing its hard to make an apples-to-apples comparison. Performing almost exactly as expected, WB's releas...