I rewatched the Passion last night with my brother and sister-in-law. Upon second viewing, I was struck by how very powerful is Gibson's treatment of the moments in which Christ is nailed to the cross. At first, I tried to turn away and avert my eyes, reluctant to see the acute depiction of the visceral. Then the intercutting back to John 14-16 jerked me back to the moments being depicted. The juxtaposition of the Upper Room discourse and actual Crucifixion held me, gripped me, riveted me, until I was ashamed that I had tried to turn away.
I was also struck by how icon-like Gibson made Caviezel's Christ in death. He really does look rather like a Byzantine icon painting.