"I had been in Interstellar, and then Chris put me on ice for a couple of movies, so I wasn't in the rotation," the 52-year-old shared, "but I actually negotiated in couples therapy—this is a true story—the one caveat to my taking time off was if Chris Nolan called."

And Matt admitted that when he and Luciana struck their deal, he had absolutely no indication that a call was coming. 

This is without knowing whether or not he was working on anything, because he never tells you," the Downsizing actor said. "He just calls you out of the blue. And so, it was a moment in my household."

Those unexpected calls from the Inception director are something his frequent collaborators have come live with—even though they can never anticipate when he'll come calling.