The problem with Luhrmann's Gatsby isn't that he doesn't show enough respect for The Great Gatsby, it's that he doesn't show enough respect for Jay Gatsby.
This whole paranormal and/or apocalyptic teen romance sub-genre that appears to have taken over young-adult literature, movies and the world? It needs to die.
Live singing on a movie set isn't enough to re-create the majestic Les Mis experience, not when so many of the people involved insist on turning it into ... well, a movie.
This Is 40 once again shows that Apatow's a genius at coming up with funny stuff for funny people to do, and pretty clueless when it comes to wrangling that stuff into a manageable form.