The Gorge’ costars opened up about their friendship with each other — and each other's spouses — in a new interview with PEOPLEMiles Teller, Anya Taylor-Joy and their spouses have grown so attached that they’re practically a “quadruple,

Playing two characters isolated in a mysterious location helped Miles Teller and Anya Taylor-Joy get to know each other on the set of The Gorge. In an exclusive Us Weekly clip, the actors put their costar knowledge to the test while playing a game called "Who Knows Their Costar Better?