It’s no surprise that ‘Man of Steel’ feels both modern and traditional – a halfway house between the broodier Nolan way of shaking things up and the louder, bone-crunching style that director Zack Snyder established with films such as ‘300’ and ‘Sucker Punch’. This is a film that is punchy, engaging and fun, even if it slips into a final 45 minutes of explosions and fights during which reason starts to vanish and the science gets muddy.