That was one of the funniest foreign language films I’ve ever seen. The scene where the son explains to his militantly communist mother that the Berlin Wall came down because all the West Germans wanted to escape into East Berlin had me falling off the couch.
Wenn man sagt, "Der Mauer ist aus" und gibt Sie dann die Antwort mit, "Welches Mauer?" dann muss es wieder antworten, "Das Mauer zwischen Himmel und Erden."