I think Yiu Chun Chuen is another alias for the actor Hung Fung.

Hung Fung is in three movies with the name Yiu Chun Chuen in the cast list:
“Challenge of the Gamesters” (fake casino boss, very sure Hung Fung), “Legend of the Fox” (killed in a flashback) and “Brave Archer and his Mate” (one of the priests, the name Yiu Chun Chuen appear on screen at his appearence).
That are the only movies with the name Yiu Chun Chuen in the cast list.

I want to merge Yiu Chun Chuen with Hung Fung in a few days if no one objects.

I think you are right. According to these sites (which talk about the movie "In the Heat of the Sun" with Siqin Gaowa) Yiu Chun Chuen was the first artistic name of Hung Fung.

http://www.dajiyuan.com/b5/2/8/29/n211638.htm
http://www.the-sun.com.hk/channels/news ... _0001.html

I merge the two names tomorrow.
Thanks for the information.