Well it's Edgar Wright so worth a watch and at least looks closer to the novel than the Arnie abomination.
But not sure about the tone, long time since I read the novel, but remember it was pretty serious and cruel, I guess they feel the need to get some of the slapstick nonsense in from the Arnie film.
Plus all the little support act Tv shows in the novel that are pretty shocking are probably already on our screens as reality TV these days. So maybe the jokey jokey film is the way to go.