Michelle Williams is detailing a time she and Ryan Gosling truly committed to their characters for a movie.

Michelle and Ryan starred in the 2010 film Blue Valentine together, which tells the story of a couple whose marriage unravels. The now 44-year-old actress explained that in order to better grasp the nature of their characters’ relationship, the two decided to temporarily live together.

“We took a break in filming. We shot the first part when they’re young and in love and everything’s going really well. And then we took a two-week break, and we lived together,” she said while on the “Armchair Expert” podcast.

Michelle clarified that they only lived together part time, and described the situation as “professional.”

“We did these improvisations during the day, honestly, to figure out ways to annoy each other. And to destroy this thing that we had made. We were having such a...