Homage or Rip-off

Remember that pictorial spread in W magazine a few years back featuring Brad Pitt and Angelina Jolie portraying a bored 1960s couple? The 60-paged catalogue, which was photographed by Steve Klein, oozed with smart mise-en-scene and tons of back story. Well, at least one image wasn't as original as I thought. Julius Shulman took a very similar photograph almost 50 years ago. (The image is currently on view at the Orange County Museum of Art's "Birth of the Cool" show, as I read on Modern Art Notes.) Entitled "Case Study #21," Shulman's photo highlights a very cool couple relaxing in their Pierre Koenig-designed living room. So, was Klein's image an homage or just a blatant rip-off?