Build a movie plot around this: Who is an animal keeper at the Belgrade Zoo? Ivan
A:
Underground depicts the life of two friends throughout World War II, Cold War, and the Yugoslav Wars.The film opens in Belgrade, the capital of the Kingdom of Yugoslavia, early morning, 6 April 1941, as two roguish bon vivants Petar Popara nicknamed Crni (Blacky) and Marko Dren are heading home following a night out on the town. Riding atop a horse carriage while tailed and serenaded by a brass orchestra, they're drunkenly singing and shooting their way through the city's downtown. They pass through Kalemegdan and shout salutes to Marko's brother Ivan who's an animal keeper in the Belgrade Zoo. A stutterer with a lame leg, Ivan is already up to feed the animals and waves to them warmly as he records food portion amounts while listening to early morning radio bulletins.As the drunk duo pulls up in front of Blacky's home, his pregnant wife Vera comes out to angrily usher her husband into the house while threatening to leave him "just like Marko's wife left Marko". Intoxicated Marko pulls Vera aside and lets her know that they enrolled Blacky in the Communist Party (KPJ), but she's way too angry about Blacky's irresponsible behaviour as a husband to properly process that piece of information. Blacky goes into the house while Marko proceeds on and picks up a street prostitute before disappearing into his house with her.Part One: War1941A couple of hours later, as Sunday dawns, Ivan is making rounds at the zoo to feed the animals, hungover Blacky is eating breakfast while pregnant Vera complains about his supposed affair with a theatre actress, and Marko is preparing for sex with his prostitute as he lecherously watches her take a scrub in his bath tub. Suddenly, the roar of the planes is heard, and Nazi bombs begin falling on Belgrade. In the ensuing chaos, as people run for cover (including Ivan desperately trying to save his beloved animals), unflinching Blacky and Marko show no signs of panic. The former stubbornly sits at his table eating his breakfast, cursing the Nazis as his wife pleads with him to go to...