Donnie Yen Chi Tan is also the action director in the film SPECIAL ID (DUT SHU SUN FUN) as he adds street fighting and special forces fighting techniques to find a new breakthrough for "Yen Kung Fu".
According to a report on Tvbnewsworld, Yen Chi Tan asked for no repeats for every action scene. He has one on one fight scenes with many actors and had to design each person's different fighting style.
In the film, he is a dark hero and becomes an enemy to Andy Tien (On Chi Kit) due to their different goals. Their realistic fighting becomes the bright spot of the film, as they use metal rods and bars. Yen Chi Tan's action is so fast that even cinematographer Peter Pau Tak Fun says the cameras have difficulty grasping it.
Both he and On Chi Kit were injured from their fight. This film invites Hollywood make up artists to create injury images for the characters. When the make up artists fixed their "scar make up", they could not differentiate the fake from the real wounds.
Yen Chi Tan sees On Chi Kit's potential as a kung fu star successor, as he is agile, tall and handsome.
With the realistic fighting during the shoot, injuries often occur. Yen Chi Tan admits that with the injuries that he has, even sitting hurts. He has to tough it out with nothing but will power. "The Strongest In the Universe" does not refer to his body but his spirit.
Yen Chi Tan earlier also completed another film YUT GOR YUN DIK MO LUM (ONE PERSON'S MARTIAL ART WORLD).
At the wrap banquet, Emperor boss Albert Yeung Sau Sing was present and gave away HK$ 50,000 cash for a lucky drawing; Yen Chi Tan and director Teddy Chan Tak Sum gave 20,000 and 30,000 respectively. Yen Chi Tan became the Fortune God and gave away HK$ 1,000 bills.