found: Neprijatelj, 2011:credits (Dušan Mazalica; cast)
found: Internet movie database, September 4, 2015(Dusko Mazalica; actor, producer; born March 12, 1977, Banja Luka, Bosnia and Herzegovina; the film The enemy (= Neprijatelj) is listed among his credits)
found: Srpskohrvatski Wikipedija, September 4, 2015(entry for the 2011 film Neprijatelj: actor's name is given as Duško Mazalica [note Duško is a common nickname for Dušan])
found: WWW search, September 4, 2015(evidence of both usages present)