2/4. Released in 1979 and set in the time of Christ, Terry Jones's satirical comedy about Brian Cohen - a man continually mistaken for the Messiah - outraged church leaders and was banned by many local councils. But were there any facts behind the farce? Historians reveal the real Judean Popular Front; classicists explore the fate of a second messianic Jesus; and director Terry Jones explains why the Virgin Mandy sounded like a parrot.