For anyone not familiar with Norwegian writer Jo Nesbø, his Harry Hole thrillers have inevitably been compared to that Scandinavian phenomenon from Denmark that is the late Stieg Larsson. A comparison that while it might do no harm to book sales, must jar with a man who has been successful enough in his own right to be able to hold back on allowing his greatest creation, the hardbolied, hard-drinking Oslo detective Hole to be realised on screen. Martin Scorcese, no less, has recently signed up to direct The Snowman with Nesbø having the final say in the matter.

However, it is Headhunters that Nesbø has allowed to be brought to the big screen first.