Welcome to the first part of our chat with legendary editors Maryann Brandon and Mary Jo Markey, who cut ‘Mission: Impossible 3’ and are generally amazing. In this entry, we talk about the process of working on ‘M:I-3,’ including their relationship with Tom Cruise and JJ Abrams (including stories from ‘Super 8’ and ‘The Force Awakens’), the line of dialogue Maryann spoke, and the often overlooked importance of editors in the film business.