Chris Pratt Reveals Arnold Schwarzenegger's Sweet Grandpa Name (Exclusive)

Chris Pratt reveals the grandpa name of his famous father-in-law, Arnold Schwarzenegger. The Marvel star shares two daughters, Lyla and Eloise, with wife Katherine Schwarzenegger. Chris spoke with ET at the New York premiere of his film, 'Guardians of the Galaxy: Vol. 3,' where he also opened up about Arnold's praise for the new film. 'Guardians of the Galaxy Vol. 3,' in theaters on May 5.