There’s lots of noise in the news at the moment about weight-loss pills now that they’re on the market in the UK, and while it obviously makes sense for some people, they could always go a much cheaper and easier route and just do what Christian Bale did when he made The Machinist in 2004. OK, so technically Bale’s regime of black coffee, an apple and a tin of tuna a day might be ‘dangerous and unsustainable’, but hey, it lost him 60 pounds, or …