Watch Society Ballooning, Pittsfield, Mass. (1906) : Full Movie Online Free At the beginning of the film, a group of men can be seen gathered around a flat area near a large municipal gas tank. Most of the group are attending to the skin of a big balloon in the foreground near the camera. The remainder of the film shows the balloon being filled with gas until it is buoyant enough to become airborne, the mounting of the suspended basket, the release of the balloon, and the actual flight. The balloon was the Centaur.