The Story of Us (1999)

"Can a marriage survive 15 years of marriage?"

After 15 years of marriage, Katie and her husband, Ben, have grown apart. While they keep up the facade of having a contented marriage, mostly to not worry their children, they aren't happy together and argue frequently. While the kids are away at camp, Katie and Ben decide to separate and try to reassess their relationship to see if they should stay together or split up for good.