Produced by Robert Drew[3] and shot by Richard Leacock, D. A. Pennebaker, Terence Macartney-Filgate, and Albert Maysles, the film was a breakthrough in documentary film style. Most importantly, through the use of mobile cameras and lighter sound equipment, the filmmakers were able to follow the candidates as they wound their way through cheering crowds, cram with them into cars and crowded hotel rooms, and hover around their faces as they awaited polling results. This resulted in a greater intimacy than was possible with the older, more classical techniques of documentary filmmaking, and it established what has since become the standard style of video reporting.
