hand edge  of the set can be seen at one point, too, with crew and equipment  visible beyond (completely out of shot in the Region 2 version).  When the prisoners are assembled the morning after the escape, there  are several huge studio lights on stands on the left side of the  frame between the trip wire and the fence. More studio lights are  visible on the left frame during the first appearance of German town  where Roger Bartlett and Mac McDonald are captured. The Region 1  Special Edition DVD has been reframed, removing most of these  instances.