Ron Howard has reportedly visited CERN in Switzerland as part of his research for the 'prequel' to his movie version of The Da Vinci Code, based on Dan Brown's Angels and Demons:

Landua took Howard and his staff to the factory where scientists make antimatter “and they wanted to know, was it true what Dan Brown wrote about antimatter.” In fact, Brown’s 480-page novel, published in 2000, is riddled with scientific inaccuracies. Landua pointed out some of the errors to Howard and proposed a more plausible scenario. “They recorded what I said over lunch and I later heard that every word of it has made it into the script.” Cern said a documentary on the facility’s work should appear as a special feature when the DVD version of Angels & Demons is released in 2009.

Wonder how they'll adapt the story without the antimatter (at least as Dan sees it)?