Ron Howard recalls Tom Hanks going 'pants-less' in front of Mona Lisa

During a Happy Days reunion event held at MegaCon in Orlando, Florida over the weekend, the actor-director recounted to fans how the Hollywood icon ended up with no trousers on in front of Leonardo Da Vinci's famous painting in the Louvre Museum in Paris, France while they were filming the 2006 mystery thriller. "All of our grip equipment and camera equipment was in the Mona Lisa room. And at one point, we were really hurrying, we were behind schedule," he told the audience, according to People.