This is a script I wrote myself for my Year 4 class as a general Harry Potter assembly. My class is a huge Harry Potter fan. I looked high and low online for a good idea that's not just about lessons we can take, but also entertaining for all viewers.
There is humor, lots of acting parts, dance (by Voldemort and followers) and a song by the whole class at the end. You can get your whole class involved.
Super hit assembly script. Smart included with links to videos etc.