To prepare for their new roles with characters who lived on opposite coasts, Witherspoon and Kutcher said they started video calling each other a month before filming began.

\"We had to pretend to be friends for 20 years. So we started calling each other and FaceTiming each other for about a month ahead of time,\" Witherspoon said. \"So it was really good. By the time we got to set, I knew his favorite football team, the name of his dogs.\"

\"We got real close. I mean, with mom on the porch,\" Kutcher continued. \"It was actually really cool because we're only in three scenes where we're physically together. And so building this chemistry and building a relationship and really becoming genuine friends, it made it, once we started filming, because most of the time we're filming, one of us was just FaceTiming in while the other one was on set, and so it was just natural because we're already communicating that way.\"

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