I love the movie, except for the Snape/Professor Trelawney storyline.

It's clearly a "Fluff" movie, so yeah, Hugh Grant as the Prime Minister is a bit of an exaggerated stretch.

But, I watch it for Colin Firth's story.
I totally forgot the "nude scene" people are talking about, until you described it. But, then, I'm not a parent, looking for movies to watch with kids or teens. I don't think of this as a movie even AIMED at kids or teens. It is
obviously an adult-themed movie. (Adult-themed not meaning porn. But, about the complexities of adult relationships, other than the Liam Neeson & son storyline. It has unrequited love, another guy who gets it on with many women, AND there is a storyline about infidelity. Clearly not kid appropriate subject matters.

) Not
every film is meant to be watched with kids. Even when they are "fluff." Even when they are Christmas movies. Adults need fluff and eye-candy too.
The film was given an R rating by the Motion Picture Association of America. Not PG or even PG-13.