Ah hah, so it's not just me that struggles. Thank goodness I'm not alone. I understand the basic concept, that it's meant to give the reader an idea of tone/style, however surely that's what the synopsis, blurb and pitch is for?
Hamlet, eh? Not that recent, but certainly a noteworthy title. I am now intrigued to know what the other half was! It was Hamlet crossed with Jurassic Park, for example, that would certainly be an interesting Comp!