I saw this last night and I really wouldn't recommend it. Okay, so I've never played the game so maybe that improves it.
But it managed to make two hours seem more like three with its meandering plot line.
At least there were long sections without any dialogue because most of that was utterly pathetic.
When you found out the 'cause' you were left wondering quite what caused the 'witch' accusations as they seemed a bit far fetched.
And WHAT THE FUCK was Sean Bean's accent about? He sounded like Yorkshire by way of Mississippi and French Canada...
In short: avoid.