Martial arts legend Donnie Yen discusses what fighting styles influenced his work in our exclusive featurette for Special ID, debuting on Blu-ray and DVD May 13 from Well Go USA. The actor portrays a Hong Kong undercover cop deep within a violent gang, whose leader is determined to find all of the traitors in his midst. Take a look at this featurette you can't find anywhere else, where Donnie Yen breaks down the various martial arts styles he has used over the years.

The cops can't control him. The mob wants him dead. And time is running out. Legendary action icon Donnie Yen (Ip Man, Hero) returns to contemporary MMA films as a deep undercover police officer in the action-packed mob drama Special ID, debuting on Blu-ray and DVD May 13th from Well Go USA Entertainment. Yen takes on the role of "Dragon" Chen, a Hong Kong undercover police officer deep within the ranks of one of China's most ruthless underworld gangs. The leader of the gang, Xiong (Collin Chou), has made it his priority to weed out the government infiltrators in his midst. Struggling to keep his family together and his identity concealed, Chen is torn between two worlds. Upping the stakes, as Chen's undercover comrades are being dealt with, one by one, Chen fears his days are numbered. Now, he must risk everything to take down the organization and reclaim the life he lost when he took on this perilous assignment. In addition to Yen and Chou (The Matrix trilogy, Badges of Fury), Special ID also stars Tian Jing (Policy Story 2013) and Hanyu Zhang (Back to 1942, White Vengeance) under the direction of Clarence Fok Yiu-leung (Snakeheads, Together). Bonus materials include a behind-the-scenes featurette.

Synopsis:

Donnie Yen is Detective Chen Zilong - but the criminal underworld knows him as "Dragon" Chen, a dangerous but effective enforcer. When rivalries explode with the reappearance of an old enemy and a brutal murder, the Triads close ranks and unleash a series of executions - with Chen at the top of the list. Undercover and under attack, he has no choice but to rely on a new partner (Tian Jing) and his knowledge of the streets to get out alive. It's the only chance he's got.