Therefore, so that you will be able to enjoy the imagery, I recommend that you start with the high-quality version that lacks English text and then, when Hess begins to speak at 22:30, switch to the English-text version below it. You can do this most easily by starting the upper one slightly before the lower, and turning down the sound on the lower one until you need it.
Triumph of the Will and Victory of Faith
These films document the national conventions of the NSDAP in 1933 and 1934. The 1934 film, Triumph of the Will, also qualifies as a great artistic achievement for the director, Leni Riefenstahl. Victory of Faith (also by Riefenstahl) is not nearly as well done, but if you enjoy Triumph of the Will so much that you must have more, then you should watch the earlier film too.
Unfortunately the online copy of Triumph of the Will that has English text also has a somewhat pixellated image. This fault is particularly noticeable in the early scenes depicting clouds.
Triumph of the Will without English text, but with a good picture:
Triumph of the Will with English text:
Victory of Faith: