Question: Were both Wang Xiaoshuai and Justin Reardon producers?

Context articles: Jia Zhangke
Shanghai Dreams
Wang Xiaoshuai
Justin Reardon
Frozen (1997 film)
Red Amnesia
So Close to Paradise
Karmic Mahjong
The House (1999 film)
11 Flowers

Jia Zhangke (born 24 May 1970) is a Chinese film director and screenwriter.
 He is generally regarded as a leading figure of the "Sixth Generation" movement of Chinese cinema, a group that also includes such figures as Wang Xiaoshuai, Lou Ye, Wang Quan'an and Zhang Yuan.
Shanghai Dreams () is a 2005 Chinese film directed by Wang Xiaoshuai and starring Gao Yuanyuan, Li Bin, Tang Yang, Wang Xiaoyang, and Yao Anlian.
 The film was produced by Stellar Megamedia, Debo Films Ltd. and Kingwood Ltd.
Wang Xiaoshuai (; born May 22, 1966) is a Chinese film director, screenwriter and occasional actor.
 He is commonly grouped under the loose association of filmmakers known as the "Sixth Generation" of the Cinema of China.
Justin Reardon is a film writer, director, producer and editor.
Frozen () is a 1997 Chinese film directed by Wang Xiaoshuai.
 The film was originally shot in 1994, but was banned by Chinese authorities and had to be smuggled out of the country.
 Moreover, Wang was operating under a blacklisting from the Chinese Film Bureau that was imposed after his previous film, "The Days", was screened internationally without government approval.
 As such, Wang was forced to use the pseudonym "Wu Ming" (literally "Anonymous") while making this film.
Red Amnesia () is a 2014 Chinese thriller film directed by Wang Xiaoshuai.
 The film deals with the psychological impact of an elderly retired widow (played by Lü Zhong)'s past.
 Wang considers "Red Amnesia" to be the last film of his Cultural Revolution trilogy, which includes 2005's "Shanghai Dreams" and 2011's "11 Flowers".
 It was released on April 30, 2015.
So Close to Paradise () is a 1998 Chinese film directed by Wang Xiaoshuai, a member of Chinese cinema's so-called Sixth Generation.
 It is alternatively known by the English title Ruan's Song or by its original Chinese title, The Girl From Vietnam ().
 The film was a coproduction of the Beijing Film Studio, and Beijing Jin Die Yingshi Yishu, as such, it is Wang's first major film production within the Chinese studio system.
 The film's literal title, The Pole-Carrier and the Girl, refers to two of the main characters played by Shi Yu and Wang Tong.
Karmic Mahjong () is a 2006 Chinese comedy film directed by Wang Guangli.
 It stars Francis Ng as a mechanic from Chengdu plagued by bad luck and Cherrie Ying as a young woman who appears to share the same affliction.
 The film also features cameos by the prominent Chinese directors Wang Xiaoshuai and Jia Zhangke.
The House is a 1999 Chinese film directed by Wang Xiaoshuai.
 It is rarely, if ever, screened abroad, and remains one of Wang Xiaoshuai's least well-known works outside of China.
 It is alternatively referred to as Suburban Dreams, Fantasy Garden or Dream House.
 The film was produced by the Beijing Film Studio and the China Film Group.
 Wang Xiaoshuai himself considers it one of his most inconsequential efforts to date, to the extent that it has "sunk into oblivion."
11 Flowers () is a 2011 film directed by Wang Xiaoshuai centered on a boy named Wang Han who loses his white shirt which shows that he is his school's best gymnast.
 The loss of the shirt is to take on greater metaphorical meaning as the film progresses which is inspired by the director's own experience as a youth during the cultural revolution and the more general confusion of childhood.