There really isn't anything "artistic" about what really happened. That is what happened in the last twelve hours of Jesus's life. What did you expect? Large-scale battles? Trying to destroy a ring so a man wouldn't take over the world? It was a re-telling of the last 12 hours of Jesus' life so people who didn't know what happened could learn.
EDIT: Alright, I just got back from seeing it. That's some pretty powerful stuff. I find it odd that one of the main issues with the movie was Anti-Semitism, yet it came directly from Jesus' lips: "Forgive them father. They are not to blame." He tells Pilate that.
I still don't get the symbolism with the psycho-retarded baby that Satan holds. And also, the crow motif: why would (SPOILER)a crow gouge the eyes out of his servant?
I thought the most powerful scene in the movie was the scourging scene. I couldn't help but think "Why did you do this for me?"