While TESTAMENT is preferable to the rather weak THOUSAND EYES OF DOCTOR MABUSE, you'd still be better off looking for the silent Mabuse films -- DOCTOR MABUSE, THE GAMBLER, for example. It just isn't the same without Fritz Lang, though Lang is not at his best after 1960, in my opinion (apart from his INDIAN TOMB two-parter, a stylish classic and direct influence on INDIANA JONES AND THE TEMPLE OF DOOM). Klingler tries, but he's just not up to the Master's standards.