Hayley Atwell had an unseen costar during a fight scene in “Mission: Impossible – The Final Reckoning.” During a recent appearance on “The Tonight Show,” Atwell revealed she was more than eight months pregnant while filming reshoots of a fight scene in “Final Reckoning,

Atwell, who plays a thief named Grace who joins forces with the IMF, stars in “Final Reckoning” alongside Tom Cruise, Simon Pegg, Ving Rhames, Esai Morales, Angela Bassett, Pom Klementieff, Henry Czer...