The couple announced earlier this week they are taking a break from their, but it is said the "Red 2" star wants to do all she can to make things work, reported Contactmusic.
"She would do everything in her power to keep their family - which includes their children Dylan, 13, and Carys, 10 - together," a source said.
"Catherine has already spoken with a marriage guidance expert who now wants to see them individually and together. She is painfully aware this could be the last throw of the dice," the source added.