

The melody used for condor appearances was taken from Hans Zimmer's "All of them", notable for being part of the OST of the 2004 film King Arthur. The melody of the song Dearest by Ayumi Hamasaki, famous for being in InuYasha, can be heard in the background on episode 15 during the scene where Gongsun Zhi is talking to Xiaolongnü at the Passionless Valley. The chorus from Iwasaki Taku's Shades of Revolution, a Rurouni Kenshin OVA musical score, was used in a minor fight scene between Yang Guo and Li Mochou (episode 30). The music for the series was taken from motion picture scores of films such as Terminator 2: Judgment Day, Independence Day, The Day After Tomorrow, Van Helsing, Master and Commander: The Far Side of the World, Harry Potter (film series) and Batman Begins. Zhou Jie makes a cameo appearance as Yang Kang. Scenes from The Legend of the Condor Heroes (2003) were featured as flashbacks including the scene depicting Yang Kang's death. Locations include Zhejiang, Chongqing, Shandong, Guangdong, Liaoning, Beijing and Sichuan Jiuzhaigou Valley.

Shooting began in October 2004 and ended in May 2005. It was first broadcast on 17 March 2006 in China and subsequently broadcast in other Asian countries such as South Korea, Taiwan and Singapore. It is the second instalment of a trilogy produced by Zhang Jizhong, preceded by The Legend of the Condor Heroes (2003) and followed by The Heaven Sword and Dragon Saber (2009). The Avengers make their return here, this time taking on Thanos in a very loose retelling of the Infinity War story. The Return of the Condor Heroes is a 2006 Chinese television series adapted from Louis Cha's novel of the same title. Infobox instructions (only shown in preview)

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