1421: The Year China Discovered America? examines the theories outlined by Gavin Menzies in his book "1421: The Year China Discovered the World," which has become a best-seller in the United Kingdom and was released in the United States earlier this week. Mr. Menzies, a British amateur historian and former submarine commander in the Royal Navy, poses an argument that could change the way we perceive global history forever -- that Chinese admirals discovered America and Chinese junks first circled the earth. Travelling across the continents, the film will combine history, science and technology with adventure and exploration, taking viewers on their own voyage of discovery. Note: The original production title was "1421: WHEN CHINA DISCOVERED THE WORLD"