At first rather annoying in its heavy emphasis on reenactments, this movie ultimately proves fascinating, simply because the complicated, highly dramatic tale it tells still almost defies belief.

This is a must-see and one of the best documentaries - and films - of this year.

A film of deceptively outspoken contemporary relevance, this is cinema at its most alert, alarming and alive.

The storyline feels a little thin and moth-eaten in parts but this sequel is plenty of fun.