United Kingdom, March 1 -- Chris Hemsworth and Elsa Pataky credit honesty for keeping their marriage alive.

The 42-year-old actor and the 49-year-old model married in his native Australia in December 2010, months after they were introduced by his talent agent, William Ward, earlier that year.

Speaking about the secret behind their 16-year romance, Crime 101 star Chris told People: "There's an honesty, the north star of truth, that you're going to get with Elsa.

"I can show something to a bunch of other people, and they might be like, 'Oh, great work,' but Elsa will tell me if it sucks."

Actress Elsa added: "I'll tell him, 'That's actually not funny. It doesn't work.'"

Chris says that "critical sort of assessment" means the blonde bea...