It's likely coincidental, but still an interesting juxtaposition. This morning NPR reports on both a Verdi Requiem memorial performance at the Terezin concentration camp and the recording of "The Da Vinci Code" soundtrack.
The wrathful Latin text of Verdi's "Dies Irae" was a protest song fraught with meaning for the prisoners who performed it during World War II. The movie's soundtrack is ethereal-sounding Latinate nonsense.
If that's a joke on pop culture, it bears added irony from the fact that the Verdi these days is most often associated with commercials and sword-and-sorcery games.