My sweet home (2001)

Berlin, A Polterabend (i.e. a party on the eve of a marriage) is taking place in a café. An American has persuaded his German friend to marry him, after just one month of knowing each other. But while Anke has decided to create a family for her and her baby, Bruce has reservations. The party's member consist of various immigrants that happened to be there, each with his own problems and Anke's mother who objects to the marriage and is expelled by her own daughter.