THR reported earlier last week of rare, unseen footage from the original Star Wars shown at the Orland celebrations. Games Radar found the footage on YouTube today and has it explained here:
John Knoll, the visual effects supervisor who came up with the concept for Star Wars: Rogue One, hosted a panel at Star Wars Celebration Orlando 2017 in which he revealed some never-before-seen unused footage from 1977’s Star Wars: A New Hope. Two pieces of footage stood out (via THR): an extended scene featuring Carrie Fisher’s Princess Leia reacting to Peter Cushing’s Grand Moff Tarkin when he orders her home planet to be destroyed, and one in which the Rogue Squadron’s Gold Leader (played by actor Angus MacInnes) dropped an F-bomb when he screwed up one of his lines.