Originally appeared on E! Online

Ben Stiller kept the faith when it came to Christine Taylor .

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Despite the "Zoolander" stars’ 2017 separation , the couple — who share children Ella Stiller , 23, and Quinlin Stiller , 20 — found their way back together years later. And Stiller has an idea about the secret to why their relationship is still a success.

“You just have to want to be together and want to make it work,” he exclusively told E! News at the Oct. 5 NYFF63 premiere of his documentary "Stiller & Meara: Nothing is Lost." “I think that's the biggest thing.”

The 59-year-old found that to be one of the biggest takeaways as he worked on the documentary about his late parents, comedians Anne

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