Global impact I say. "Ben Hur" didn't make an impact (hint, it won a record number of Oscars).
As to his superhuman indurance to the horrific torture Mel displays on the screen, good for him. He has in just over two hours displayed the lesson God seemed to be reaching for but at the expense of not showing one iota of spirituality. This is Mel's ego being sacrificed, not the story of the Passion. Thanks, but I'll stick to Bach's "St. Mathew's Passion" and the finest film ever produced of the story, "The Gospel According to St. Mathews Passion" mention by one of the reviewers, an Italian film that has more resonance in ten minutes than in the length of time Mel spends on his slasher Christ film.
A link to that very fine film that Mel only can suppose to surpass:
http://www.imdb.com/title/tt0058715/
If anyone rents this film, they will see how far off the ditzy critics who say that the Passion has never been presented as grand as this paltry effort. Sorry, I hated the film.