Baz,
it may look interesting, - don't be fooled.
I won a pair of tickets to see this somehow just by clicking on a few links on the cinema website. But I can assure you that if I'd paid for the tickets, I would have been hammering on the manager's door for my money back.
Those that do choose to see it may notice a distinct similarity to how things were back in the apartheid days, - without giving the plot away.
Cheers