It's hard to truly quantify the impact of The Little Mermaid back in 1989. It reinvigorated a studio that was struggling to recapture the magic of decades past. It set the template for a new renaissance of animated musicals. And it delivered one of Disney's most treasured princesses whose popularity hasn't waned a drop in 33 years. It's rather surprising it's taken us this long to arrive at a live-action remake. Given the daunting task of staging a musical with 50% of the action taking place underwater, it's not...