Breivik cries over his propaganda video in Norway massacre trial

Anders Behring Breivik cries as a video of a propaganda video posted by him online is presented by the prosecution is shown in court in Oslo Norway.

OSLO // Anders Behring Breivik, whose trial opened today for the killing of 77 people in Norway's twin attacks last July, welled up in tears as the court viewed a film he posted online the day of the attacks.

His face turned red with emotion, Mr Breivik's lips trembled and he wiped away tears as the 12-minute film was projected on a large screen, including photos and drawings of Islamists set to music.

Mr Breivik had previously remained stony-faced as prosecutors read aloud a long list of names of those killed and injured and the chilling details of his massacre.

He also smiled at one point when prosecutors recalled elements about his past.

The 33-year-old right-wing extremist has confessed to the killings but entered a plea of not guilty earlier today, arguing that he was acting in self defence.

He has previously described his actions as "cruel but necessary" and claims he acted alone against those he considered to be "state traitors" for opening Norway up to multiculturalism and allowing the "Muslim invasion" of Europe.