"Anonymous" is, even though the plot sounds interesting, nowhere a masterpiece. Director Roland Emmerich, usually known for his overblown, dumb disaster movies, tried to make something arty and serious, but eventually fails by the movie's typical hollywood structure. The movie may have a good optical look, but the movie is not as good as it could have been. More or less, the movie ends up like a usual blockbuster that just has an unusual setting. But i think it is the highlight of the Emmerich's career, which is pretty sad. It is okay, but there are many blockbusters that are better than this.
The movie has a few violent moments. A character gets stabbed accidentally while hiding behind a curtain.
A few mild innuendos, some not very explicit talk.
There is not much inappropriate content. It is at the PG side of a PG-13. Suitabel for children 10 and up.