The building where the wedding takes place is the scenery of JAG (1995). There it is the headquarters of the Judge Advocate General's Corps.
Guest stars Sean Patrick Thomas and Amanda Schull both got their big break starring in dance films: Thomas in "Save the Last Dance" and Schull in "Center Stage."
As in this episode, in the BBC television series Sherlock, ( in the third season, second episode; The Sign of Three) the main characters try to identify an assassin in a wedding ceremony, and it is understood that the wedding photographer is the assassin.