Washington DC, Oct. 17 -- Ben Stiller is sharing what he learned through the process of making his new documentary, Stiller & Meara: Nothing Is Lost. During the New York Film Festival premiere of his latest project, the 'Severance' director opened up about what he learned about both his parents' relationship and his own marriage throughout the process of making the film, reported People.

"I really appreciated being able to be at this point in our relationship where we can talk about all this stuff, and how there were so many elements in our relationship that in a way mirrored my parents' relationship that I wasn't even aware of," he told PEOPLE of Taylor, whom he married in 2000. "And she's always had this amazing perspective on things l...