I worked in the 'Dong Feng Yu'. Namely Lau was the Costume Designer, but he actually did the job of a Production Designer. It's because certain people in the Art Dept. were not doing well. Director Yun-long Liu asked Lau to cover their jobs. You'll see from the below link that he also designed the set of a night club.
http://ent.sina.com.cn/m/c/2009-05-21/12402531140.shtmlAll crew members took him as the real PD, though I don't know what his title 's gonna be.
As for 'Lust Caution', on the film's ending rolling credits, he is the Executive Production Designer. His name was nominated together with Pan Lai at the Golden Horse Film Festival. So he IS not just one of the Art Directors.
I've updated my list as below:
Olympic Sai-wan Lau?aka Shi-yun Liu?’s filmography in current years :
1. As Costume Designer in“Dong Feng Yu”(2009), directed by Yun-long Liu;
2. As Art Director in “The Mummy: Tomb of the Dragon Emperor” (2008);
3. As Executive Production Designer in “Lust Caution” , directed by Ang Lee(2007), nominated for Best Art Direction at the Golden Horse Award;
4. As Production Designer in “Xiu Xiu(aka “Tian Yu”)” , directed by Joan Chen (1998).
Thx !!!!