Maybe the costars became BFFs after spending so much time together but it looks like their makeup tricks are rubbing off on each other. Dramatic lashes? Check. Silvery blue shadow that lightens to almost white near the inner corners of the eye? Check. Bronzy blush on the apples of their cheeks? Check. Nearly nude lips? Check.
If Gossip Girl's Queen Bee hadn't also lined her lower lids with dark eyeliner they would have been twinsies. It's either a genius movie marketing makeover (Meester's character is obsessed with Kelly's in the thriller) or life imitating art via one ironic beauty routine. Either way, they both look fabulous!