Underground
Подземље (original)
In the midst of war, Marko and Blacky attain riches dealing arms to resistance fighters. When things get too hot, they move into a cellar packed with refugees who manufacture the weapons. With Blacky convinced he should remain hidden until the war ends, Marko conspires to leave him there.
Starring Miki Manojlović, Lazar Ristovski, Mirjana Joković, Slavko Štimac, Ernst Stötzner, Srđan Todorović, Mirjana Karanović, Milena Pavlović, Danilo "Bata" Stojković, Borivoje Todorović
Watch "Underground" on Kanopy released in 1995. It's a drama and comedy movie, and has a rating of 8 out of 10 from Imdb which is usually fine for this kind of movie.