Corrected entry: The very first time when David connects to NORAD from his room and Jennifer is in the room with him she is wearing very short, shorts, but after they flash to the NORAD scene during the first simulated attack and we go back to David's room, Jennifer is now wearing long sweat pants.
autumwitch
15th Apr 2013
Correction: In that scene Jennifer already enters the scene running with long dark sweat pants and from that moment on she remains with them. She is not wearing short pants at all in that scene not to mention from the beginning.