The world is waiting to see just how Sophie Turner's breakout role as Sansa Stark will play out in the final season of HBO's Game of Thrones, but one thing is (M'Kraan) crystal clear: In Dark Phoenix, Turner's turn as Jean Grey will be full-on villainous. That's not much of a surprise considering that the new (and final, as far as 20th Century Fox is concerned) X-Men movie bears the name of the iconic antagonist in its very title, but a new TV spot teases the lengths to which Grey's transformation will …