I would go down 1 of 2 routes here. First go for the FOV route, just select your camera, take a look at the focal length, then reduce the number. This will optically zoom out, giving you a wider field of view.
If that doesn't work for you, then Add a second camera, place it inside the animated camera in the object list, activate this new camera, then navigate backwards in a straight line. The first animated camera will now drag the second camera around with it. Just be careful you dont back up into a wall.