I'd liken it to Eyes Wide Shut or American Beauty, as a film so hung up on being well-made and worthy that they forget that it needed more; it didn't even manage to be pretentious
None of these three films are bad - they're just not all that good; Hollywood's standards are so low these days that as soon as anything with even the slightest characterisation and plot comes out everyone turns cartwheels. Until they see it.
