What makes this Marvel movie particularly notable is how clearly it’s for the fans. You’re swept up, held aloft, brought back down to earth and swung back up, again and again. It’s all been building up to this, and Infinity War delivers. There are some truly superb action set-pieces, deftly directed, gorgeously choreographed, and it’s all very well done by directors The Russo Brothers, in the slick, polished way Marvel has now perfected. Sure, it’s still quippy, funny and punch-the-air awesome at times, but the easy, breezy, walk-out-with-a-smile-on-your-face days of the original Iron Man – ten years and 18 movies ago, fact fans – are long gone. You’re going to be shook, and the trailers lie. There’s a reason Disney have instigated a # ThanosDemandsYourSilence spoiler-avoiding campaign. You won’t want to miss this, because try as you might, you’re probably going to have something ruined for you – overheard on the bus, mentioned in a stray YouTube comment – if you don’t see it as soon as possible. But here are some positive adjectives to whet your appetite for Marvel’s biggest, bravest, most demanding outing yet: epic, bold, exhilarating, spectacular… sobering.From the off, it’s ON, leaving me with so much to say, so little I can say. I promise to give away no key details for this film – which is difficult when talking about Infinity War, a movie that is so jam-packed full of shocking moments, it’s essentially spoiler after spoiler after spoiler. The Marvel Cinematic Universe has never seen a bigger or badder bad guy than “The Mad Titan”, and every hero will be stretched to their limits to protect the earth from Thanos and his golden Infinity Gauntlet.