Network (1976)

"The only truth you know is what you get over this tube...Television is not the truth, it's a goddam amusement park..." Another tour de force for director Sidney Lumet and writer Paddy Chayevsky, it perfectly encapsulates the post McLuhan generation's anxieties about the growing power of corporations, the huge weight of the media spectacle and its power to control and mould events. A bit more information on Wikipedia here.