War isn’t just a bitch. She’s a suntanned bitch in a bathing suit and red flip-flops. It’s tough enough for defeated Croatian soldier Sergije and his Bosnian pal Nikola to come home with their heads down. But when the two are welcomed back by stifling summertime weather and an economic crisis instead of open arms, they find themselves reduced to renting out beach chairs to sunbathers along Belgrade’s Sava Lake. Director Mirjana Vukomanovic doesn’t seem too keen about easing up on the poor saps, either, in her first feature film, 1997’s Three Summer Days. Mothers and sisters lost in refugee camps, girlfriends forced into prostitution to support their families, lives of crime looking like the only way to pay the bills: It’s no Beach Party, that’s for sure. The film screens as part of “The Prism: Cinema From Serbia and Montenegro” at 7 p.m. (see Showtimes for a full series schedule) at Visions Bar Noir, 1927 Florida Ave. NW. $9. (202) 667-0090. (Matthew Borlik)