If anybody would like to hear Anton Walbrook speaking in (his native ?!) Austrian accent I recommend this movie. Here Anton Walbrook very convincingly portrays the Budapest taxi driver Fred Sponer. He is a mischievous,ill-humoured, bad-tempered (granteln), sometimes too simple minded almost stupid member of the lower classes, toiling his day away, having high aspirations but with no hope of changing his situation. This character gets tangled up in a jealousy drama involving the famous conductor Montemayor, his wife and of course Jack Mortimer, who gets murdered on the backseat of Sponer's taxi on his arrival in Budapest. How his simple mindedness gets Fred Sponer ever deeper into a fix is shown in this very delicious movie I highly recommend. The script is very well-done and written by Thea von Harbou. A very deserved ten out of ten from me!!!