I haven't seen the movie in years. There was talk about cutting out the rear panels and adding windows and I started thinking on how the shutters would open and close. I always thought that the shutters were on the outside of the sub and someone would press a button and they would slide or flip to uncover the windows. When I saw that rear shot with the uncovered windows it didn't look like the shutters would have room outside to slide or flip aside. Thanks for the interior rear wall photo, so the shutters are on the inside (not on the outside as I thought). I also agree that removing them by hand and storing them somewhere is to time consuming. If the windows are going, you want to have the shutters in place fast!