I basically read what everyone here is quick to say to laugh at him at having gone from emperor to broomsweep, but apparently he was actually an example of an excellent success at bringing him down to earth with his fellow countrymen. No one here ever mentions this aspect; I only discovered this when I got curious and looked up his wikipedia page.
There’s already a biographical film about him, The Last Emperor of China. Was actually pretty good, even shows him becoming a communist. The movie is pro-Dengist and is somewhat harsh on the Cultutal Revolution, however. Not sure if that matters to you.
I was gonna mention this, it shows his reeducation at the end. It’s by Bernardo Bertolucci, who was a Marxist.
It was also filmed on-location in China when the Dengist reforms were happening and the Chinese government wanted the movie made. Really interesting background story because the whole movie is in English.