Now Playing: Candace Cameron Bure on one of her 'hardest days' at 'The View'

Now Playing: Candace Cameron Bure dishes on her new book and working with her daughter, Natasha

Now Playing: Candace Cameron Bure: Take It From Me (And Not DJ Tanner)

Now Playing: How John Krasinski went from being a 'scaredy cat' to battling monsters

Now Playing: Georgina Chapman breaks her silence on Harvey Weinstein allegations

Now Playing: Karrueche Tran discusses her new film 'The Honor List' and season 2 of 'Claws'

Now Playing: 'GMA' Hot List: Hugh Jackman sends birthday message to Ryan Reynolds

Now Playing: Former NFL star Rashad Jennings on new book 'The IF In Life'

Now Playing: Laurie Metcalf on whether 'Roseanne' is pro-Trump

Now Playing: Hugh Jackman shares a special birthday message for Ryan Reynolds

Now Playing: Meghan Markle's mom lands in London

Now Playing: Keanu Reeves set to star in 3rd 'Bill and Ted' movie

Now Playing: Kimmel: North Korea detainees 'in for some shock' with Trump meeting

Now Playing: 'Iron Man' suit worth more than $300K missing

Now Playing: US Hockey Hall of Famer Jeremy Roenick on 2018 NHL playoffs

Now Playing: Jordan Peele announces new film

Now Playing: 'Three Tall Women' star Glenda Jackson joyously sings 'I'm Forever Blowing Bubbles'

Now Playing: Tony nominee Glenda Jackson remembers her iconic movie roles, political career

Now Playing: Meghan Markle's top Los Angeles spots

Now Playing: Melissa McCarthy says she roots for internet bullies to find joy