“I’m mad as hell and I’m not going to take this anymore.” 40 years on Sidney Lumet’s Network is a film for our times

‘I want you to get up now. I want all of you to get up out of your chairs. I want you to get up right now and go to the window. Open it, and stick your head out, and yell: ‘I’m as mad as hell, and I’m not gonna take this anymore!’: Peter Finch as Howard Beale, Network