This is the famous final speech of The Great Dictator. Although there are some difficult vocabulary items, I think it is within the grasp of intermediate students.
Self-study activity:
Watch the scene for a couple of times and try to understand as much as possible. Then you can read the script here and deal with whatever difficulties you have come across.
After that, watch it again without reading the script. Finally you can practise the pronunciation of some words by reading the script and listening at the same time.
