Mel Gibson's controversial movie "The Passion of the Christ" is using a unique "surgical marketing campaign that has zeroed in on the Christian market and built a deafening buzz," according to the Wall Street Journal. "The promotional campaign got its start last year as Mr. Gibson hit the road and visited Christian leaders across America." Now, religious leaders are showing movie trailers and selling tickets to their congregations. But "passionate" marketing isn't just for churches. The hood of Bobby Labonte's racing car featured an ad for the movie [3] during the Daytona 500. The chair of Interstate Batteries, which owns the car, said he was "taken aback" by the movie.