Hugh Jackman on how role in "The Son" changed him as a father: "It's OK to lead with vulnerability"

After reading the script for the movie "The Son," actor Hugh Jackman knew in his "gut" that he needed to play Peter Miller, a father struggling to reconnect with his son who has mental health issues. 

Jackman, who has two children of his own, said the role changed the way he parents. 

"I learned it's OK to not know. It's OK to lead with vulnerability," said Jackman, whose kids are 22 and 17 years old, which is the age of Miller's son in the movie.