Contributed by Jonathan Stevenson / The art caper is a rich sub-genre of the crime film, populated by some clever and inventive movies. Customarily, they’ve focused on the complexity of a heist; think of Topkapi, Gambit, or Oceans Twelve. More recent ones – The Best Offer, The Burnt Orange Heresy, and The Mastermind – have delved fastidiously into the mentalities of the thieves or fraudsters, and in particular their perverse but rarely inauthentic relationships to beauty. Now there’s one in that vein from Steven Soderbergh, who also directed Oceans Twelve. The Christophers is slick and penetrating…