context: Riordan has achieved many achievements. [8] Tres Navarre's adult mystery series became number one on the New York Times Bestseller List on September 28, 2008. [9] The film's copyright to the Percy Jackson and the Olympians novel series was bought by Twentieth Century Fox and the first film was released on February 12, 2010. [10] Rick Riordan lives in San Antonio with his wife and two sons. Rick Riordan stated that he was writing a series based on Egyptian mythology titled The Kane Chronicles, his first book entitled The Red Pyramid was released on May 4, 2010. [11]
question: When was the sequel to Percy Jackson filmed?
answers.text: February 12, 2010