This is that rarity in films - an all-action, no-frills, straightforward re-creation of an heroic moment in history.

On this occasion, the action concerns the Zulu wars in South Africa and, in particular, the electrifying Battle of Rorke's Drift in 1879.

This is where little more than 100 men of the South Wales Borderers made a staggeringly brave stand against 4000 yelling Zulu warriors, who had just massacred a force of over 1,000 British troops.

It is in the supporting roles that the film finds its own strength. James Booth, as the malingering Private Hook, Nigel Green, as the colour-sergeant, Ivor Emmanuel (in his only film appearance) and Kerry Jordan (the camp cook) all give exemplary service.

And then-newcomer Michael Caine is so impressive it's amazing he wasn't snapped up for more star roles long before The Ipcress File two years later.

The last few scenes, as rank after rank of the last defenders pour leaden defiance at the Zulus from a few yards' range, are pulsatingly thrilling.