According to the Polish wedding announcement, one of the people getting married is named Stivic, referencing Mike "Meathead" Stivic, who was of Polish descent and therefore heard lots of "Pollock" jokes from Archie.
The opening music is the music from The Winds of War, and the plot includes the story element of a Polish-Jewish wedding being interreupted by the German invasion, followed by the heroes' attempt to escape.