Look, yeah ok, there's really no plot development as to why William is so easily seduced (she had him with an olive), nor seems to experience any guilt or acknowledgement of the pain his behaviour might cause. But if you want something vaguely entertaining that's over in an evening. Sit back, relax, leave your brain at the door and you'll never look at a hotel cushion the same way again.
Anna has great clothes though..that was one good thing.