She starred for eight seasons on the ABC ratings hit, created by her late brother Garry Marshall, and directed such films as 'Big,' 'A League of Their Own' and 'Awakenings.'

As 2018 comes to a close with 'Mary Poppins Returns,' the married actors give a rare joint interview and reveal why they've kept their careers separate, the reason they made an exception for 'A Quiet Place,' and how they navigate marriage, parenthood, famous friends and the globe-trotting demands of modern stardom.