Form has always been an important concern for political film makers. While some, like pioneering Lionel Rogosin, argued that radical films, in order to liberate the imagination of the spectator, have to break not only with the content but also with the form of Dominant cinema, the falsely reassuring clichés and stereotypes of conventional narrative film making, other directors such as Francesco Rosi, Costa Gavras, Ken Loach, Oliver Stone, Spike Lee or Lina Wertmüller preferred to work within mainstream cinema to reach a wider audience.