Machu Picchu risks of landslides, earthquakes and injury due to decaying structures. Nude tourism is a recent trend, to the dismay of Peruvian officials. In several incidents, tourists were detained for posing for nude pictures or streaking across the site. Peru's Ministry of Culture denounced these acts for threatening Peru's cultural heritage. Cusco's Regional Director of Culture increased surveillance to end the practice. In January 2010, heavy rain caused flooding that buried or washed away roads and railways to Machu Picchu, trapping more than 2,000 locals and more than 2,000 tourists, later airlifted out to safety. Machu Picchu was temporarily closed, reopening
Machu Picchu center. Owned by the National University of San Antonio Abad del Cusco, La Casa Concha also features a study area for local and foreign students. The Paramount Pictures film "Secret of the Incas" (1955), with Charlton Heston and Ima Sumac, was filmed on location at Cusco and Machu Picchu, the first time that a major Hollywood studio filmed on site. Five hundred indigenous people were hired as extras in the film. The opening sequence of the film "Aguirre, the Wrath of God" (1972) was shot in the Machu Picchu area and on the stone stairway of Huayna Picchu. Machu Picchu