Question: Who has directed more films, Tian Zhuangzhuang or Marc Forster?

Context paragraphs:
The Warrior and the Wolf: The Warrior and the Wolf () is a 2009 Chinese historical action film directed by Tian Zhuangzhuang.  It tells the story of the battle between two ancient warriors.  It is Tian's latest directorial effort since 2006's "The Go Master".

Huang Jianxin: Huang Jianxin (; born 1954) is a Chinese film director.  He is normally considered part of the fifth generation of Chinese filmmakers (a group that includes Chen Kaige, Zhang Yimou and Tian Zhuangzhuang), due to shared traits in his works, although he was not a strictly a member of the inaugural 1982 class of the Beijing Film Academy.  Additionally, Huang's films are distinguished from his contemporaries in that they focused on urban contemporary life, as contrasted to historical period dramas, as well as for their satirical observations of the Chinese bureaucracy.

Marc Forster: Marc Forster (born 30 November 1969) is a German-born filmmaker and screenwriter.  He is best known for directing the films "Monster's Ball", "Finding Neverland", "Stranger than Fiction", "The Kite Runner", "Quantum of Solace", and "World War Z".

Tian Zhuangzhuang: Tian Zhuangzhuang (, ] ; born April 1952 in Beijing, China) is a Chinese film director and producer.

Unforgettable Life: Unforgettable Life (also known as Special Operating Room and Illegal Lives) is the first movie concerning premarital pregnancy in China, directed by Tian Zhuangzhuang in 1988.  It is reported that this film has been banned for 17 years because of its sensitive topic.

September (1984 film): September is a 1984 Chinese film directed by the fifth generation filmmaker Tian Zhuangzhuang.  Though not his first film as director, "September" is considered Tian's first major feature.  The film is also known by the title "In September".

Lü Yue: Lü Yue () (born 1957) is a Chinese cinematographer and film director.  Born in Tianjin, Lü is today among the most important cinematographers of recent Chinese cinema, and is particularly well known for his collaborations with director Zhang Yimou with whom he served as director of photography in three films.  Lü was nominated for an Academy Award for best cinematographer for Zhang's film "Shanghai Triad".  He has also served as cinematographer for other Fifth Generation directors such as Tian Zhuangzhuang (for 1985's "On the Hunting Ground") as well as for older directors, such as Huang Shuqin (for 1994's "A Soul Haunted by Painting").  More recently he served as cinematographer for actress Joan Chen's directorial effort, "", a film in which he also played a small part as the titular character's father.

The Blue Kite: The Blue Kite () is a 1993 drama film directed by Tian Zhuangzhuang.  Though banned by the Chinese government upon its completion (along with a ten-year ban on filmmaking imposed on Tian), the film soon found a receptive international audience.  Along with Zhang Yimou's "To Live" and Chen Kaige's "Farewell My Concubine", "The Blue Kite" serves as one of the quintessential examples of China's Fifth Generation filmmaking, and in particular reveals the impact the various political movements, including Anti-Rightist Movement and Cultural Revolution, had upon directors who grew up in the 1950s and 1960s.

The Horse Thief: The Horse Thief is a 1986 Chinese film by director, Tian Zhuangzhuang.  It follows one of Tian's favorite topics, Chinese minorities, a topic he touched upon in 1984's "On the Hunting Ground" and would return to in 2004's documentary, "Delamu".  Like these other films, "The Horse Thief" shows Tian's fascination with China's ethnic minorities, and in particular the Buddhist ceremonies that these peoples practice.

Springtime in a Small Town: Springtime in a Small Town () is a 2002 Chinese film directed by Tian Zhuangzhuang.  The film is a remake of director Fei Mu's 1948 film, "Spring in a Small Town".  Though the two movies are referred to by different English titles, they share the same title in Chinese.

Supporting paragraphs: Tian Zhuangzhuang Marc Forster
Answer: Marc Forster