After the House of Cards star Robin Wright was spotted on the red carpet with her ex-husband Sean Penn, Robin explained to E! News why the pair decided to appear together in public. In her interview published on Tuesday, the actress explained she and Sean stayed friends and attended public outings together for the benefit of their two children, 29-year-old son Hopper and 31-year-old daughter Dylan Frances. “To be friends with the father of your children, it’s a gift. Divorce with children is one of the most difficult things in life.”