Haywire’s already gone this route, adding the likes of Ewan McGregor, Antonio Banderas, Michael Douglas, Michael Fassbender and Channing Tatum to the cast around Carano. But it’s a very common approach to surround lesser-known leads with established talent to give the film that veneer of class. Whether it’s a raft of talented character actors – as in John Carter, say, or The Hunger Games – or a plethora of no-question-about-it stars – as in Tim Burton’s Alice In Wonderland – doesn't really matter. This is distinct, incidentally, from a truly ensemble piece: there is a lead here, identifiable by the fact that they’re the one person onscreen you don’t recognise.