Pion Of The Christ.?

James Caviezel - Played The role of Jesus. Now the movie was WONDERFUL! But the thing was i did some research on this guy, And he has a Swastika Necklace on During ONE Part of the movie, I Think they put it in to see if you would notice it The Camera Looked at Jesus -No Necklace- Looked away Glanced at jesus again the Necklace was RIGHT THERE! And then the camera went off of him, and back on, and it vanished! Why would Mel Gibson do such a thing? Now im starting to question Religion itself! Im so Confused, Can Anyone Please Try To explain to me Why They might have done this?