McKenna Graces Tears Up Over 'Ghostbusters: Frozen Empire' Experience (Exclusive)

McKenna Grace tears up while chatting with ET's Rachel Smith at the New York premiere of 'Ghostbusters: Frozen Empire,' in theaters March 22. She also shares what it’s like working alongside OG ‘Ghostbusters’ cast member Dan Aykroyd and how the new and OG casts are honoring late franchise producer Ivan Reitman. McKenna then reacts to the final season of ‘Young Sheldon’ and her off-screen bond with co-star Reagan Revord.