The camera-helicopter lands on the Mass. Ave bridge during Sunday's filming. The 21 filmmakers used a helicopter-mounted camera extensively, even removing many of the lampposts on the Mass. Ave bridge so that the helicopter could fly closer to the action.

Eric D. Schmiedl­­—The Tech

The camera-helicopter lands on the Mass. Ave bridge during Sunday's filming. The 21 filmmakers used a helicopter-mounted camera extensively, even removing many of the lampposts on the Mass. Ave bridge so that the helicopter could fly closer to the action. Eric D. Schmiedl­­—The Tech