Ruben Östlund's "The Square" raised the level of this still-young Cannes Festival last night. Definitely my favorite film so far. Will Yorgos Lanthimos’s film "The Killing of a Sacred Deer,” which later in the festival, knock “The Square” off its pole position? Perhaps. But for now let us bask in the euphoric weirdness of "The Square,” Östlund’s comeback film to Cannes after his “Force Majeure from a couple years ago, equally as strange