The general hands De Sica a letter from Goebbels himself but since De Sica can't read German, it is translated for him ad alta voce (out loud). It's an invitation to Venice, which De Sica does not want to accept.

Vittorio De Sica put himself on the line in order to save his cast and crew, and the film he was making. This final segment describes how he managed to complete La porta del cielo (The Gates of Heaven). The song we hear at the end of this documentary is very famous and was sung by Vittorio De Sica himself for the movie Gli uomini, che mascalzoni... in which he acted. Listen to the entire song here.