I only got to watching this the other night, and did a bit of reading on it afterwards.
I would take all this with a pinch of salt tbh.
OK so we saw the odd incident, but a lot of the docu seemed to focus on the Krakow derby. This is between 2 teams that have a long and hated history, almost like Celtic and Rangers in Glasgow.
But there aren't any games in Krakow in Euro 2012. As I read in a paper, its like hosting the Euros in England, with a game being at Wembley, yet highlighting the Old Firm derby as something that people should expect to see.
Also, a lot of 'evidence' against another venue was the odd bit of graffiti on walls scattered around the city.
I get the feeling nothing much will happen in Poland in the Euro's. I think we might hear some racist chanting in the Ukraine, but that will probably be edited out of the mic's for us by UEFA/TV companies.