Continuity mistake: During entire scene with dancing king Herod and his men, shadows on the floor are at different angles from one shot to another. (01:16:15 - 01:19:30)
Audio problem: During the song "Judas' Death", Caiaphas sings the line "What you have done will be the saving of everyone", but his mouth is saying " the saving of Israel", the song's original lyric. (01:24:00)
Answer: In the song "Jesus Christ, Superstar, " Judas highlights several anachronisms. He makes comparison to Buddha, about whom he likely would have known little to nothing. He references Muhammad, not yet born. He even brings up the concept of mass communication, also unheard of in the ancient world. However, this number is meant to take place in a spiritual realm, out of place and time, where past and present have no actual meaning. Judas is shown to be eternally struggling with Jesus, his message, his methods, and whether or not he is truly divine. But also, let's face it...like its contemporary, "Godspell, " the entire film is pretty much an anachronism. For starters, it's a rock operetta which puts just about everything in modern terms in its language ("what's the buzz") and its cinematography (Judas being chased down by tanks, for example). If you are looking for temporal realism, there are many options for that. This film is far more allegorical than it is historical.
Michael Albert
The ghost of Judas is speaking from a modern perspective. Consider the lyric "If you'd have come today you would have reached a whole nation, Israel in 4BC had no mass communication." He is in the here and now, not in the times Jesus was alive.