Many people rely on the media for their information daily. The media controls what the viewers watch and learn by broadcasting only what benefits their political views. A consequence of this is that the viewers will likely adopt these views. A for-profit corporation setting the public agenda could be dangerous as the corporation could potentially misinform the population for money. Greed is the root of all evil.
The media sometimes influences public opinion by reporting public opinion. One of my mom's favorite stories involves the first election she planned to vote. She had never been politically active, and my father had finally talked her into it. On the way to the polling place, the results were announced. At least that's the way she tells it. They lived in California, so what she heard was actually the eastern poll projections. Still, she never voted again.
Peter Jackson's last film in the epic Lord of the rings trilogy, The return of the king, won all 11 Oscars it was nominated for at the 76th Academy Awards in Los Angeles. This set a record for the largest clean sweep and equalled the highest number of wins achieved by Ben Hur (1959) and Titanic