Film was not too bad and the effects were quite good but there was some things I didn't like....
I think this film tried to rubbish the alternative history movement (conspiracy theories) by making out that only duggies or crazies believe in that sort of thing. Yeah right.
Also, I thought it was totally unrealistic of the guy to just 'switch' like that into Mr Crazy without some obvious signs beforehand. I've met so-called 'crazy' people in real life (genuine paranoid schizophrenics, schizoids etc) and they don't carry on like this. It's too silly.
Overall I though the film was a hit job. And an ugly one at that.