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I think 'Spooks' always wanted to be a film. It wanted to have the big explosion. It wanted to have the sweeping shot of London. It wanted to have bigger action scenes, so, what's similar is that it's still a gritty, spy thriller based in London and still in a very real world. What's different is that it's bigger on scope. We got to do things in this that they couldn't do in the TV show.