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.

As somebody who had not heard any of this before, it became a curious phenomenon to sit and watch a film and slowly have the realities begin to click into place.

The film never slows down or bores, plunging from one harrowing sequence to the next.

It's simply great fun, a winsome film and an occasionally over-the-top luxury fantasy that never flags.