From WENN.com

Kun Liu's family members claim the movie executives failed to take proper safety precautions on the set in Bulgaria.

Liu, 25, was shooting an action scene near the Ognyanovo Reservoir last October (11) when he lost his life in the action sequence blast.

Production company Millennium Films and the on-set stunt co-ordinator Chad Stahelski have been named in the wrongful death suit, obtained by TMZ.com.