I know of a few who got their kicks out of watching the violence. (One of my friends tried to use this as an evangelistic film for a classmate, who for some reason thought the scourging scene was terribly funny.) But the vast, vast majority were Christians who found themeselves in deeper awe of the magnitude of Christ's sacrfice for them.
That's sick. I bet/hope it was an act and not sexual. It's clearly a case of the exception proving the point.