1 EXT. BUSY STREET. BERLIN. - DAY 1
Music and opening credits over a busy, colourful city centre street. Berliners going about their daily wartime business, mainly women, mainly shopping, but also older businessmen, are a little startled by what sounds (vaguely) like a sudden burst of machine-gun fire. What they hear, in fact, is just children playing fighter planes. They step smartly out of the way as four 8-year-old boys run down the street, school satchels flying in their wake, arms outstretched like Messerschmitt wings, firing off imaginary bursts of ammo. "Dakka dakka dakka", "Hu-hu-hu-hu-hu", "Chukkachukka" etc. They are BRUNO and his three friends KARL , LEON and MARTIN .