Visitors lined up Saturday to tour the southern New Mexico site where the world’s first atomic bomb was detonated. Officials believe they could see a record turnout at the tour of the Trinity Site amid ongoing fanfare surrounding Christopher Nolan’s blockbuster film, “Oppenheimer.” The site is usually closed to the public because of its proximity to activity at White Sands Missile Range. It was opened Saturday for the second open house of the year. Officials say the wait could be up to two hours. No more than 5,000 people are expected to make it within the window between 8 a.m. and 2 p.m.