These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Awesome Music: Being a Wes Anderson film there are a few to choose from. But perhaps the most memorable are The Creation's Making Time over the opening montage and The Who'sA Quick One While He's Away during the revenge tit-for-tat sequence.
The Faces' "Ooh La La" over the ending and credits.
Never Trust a Trailer: Trailers make the film look like a comedy rather than a dramedy. They also focus on the Escalating War, which is just a brief point in the plot. This was before people knew what to expect from Wes Anderson's films.