Why Pom Klementieff's 'Misson Impossible' Character is the Complete Opposite of MCU’s 'Mantis'

Pom Klementieff and Simon Pegg chat with ET's Nischelle Turner about their film ‘Mission: Impossible - Dead Reckoning Part One,’ in theaters July 12. Pom talks about why her MI7 character is the complete opposite of her ‘Guardians of the Galaxy’ character, 'Mantis,' and Simon Peggs shares the perks of being friends with Tom Cruise.