The quality of the picture and the sound of the copy I bought is so bad that most of the time I could not understand the dialogue. I bought this DVD just to see the cameo by Marlene Dietrich, and after her appearance I was somewhat intrigued and decided to watch the entire film. Like other reviews stated the plot is so confusing that it is difficult to follow, and it was not easy for me to watch until the end. Can someone explain to me the final scene? Hope this is not a spoiler!!! What was that woman looking for that was hidden behind a painting in that museum? She kept destroying the backs of the paintings until she finds some papers. And I did not have a clue of what was going on....