3 Days In September
Beslan: Three Days in September (original)
In September 2004, Chechen rebels occupied a school in the small Russian city of Beslan, taking some 1,200 people-most of them children-hostage. At the end of three days, over 330 were dead.
Starring Julia Roberts
It's a documentary movie, and has a rating of 7.7 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Sweden.