Owen Davian: We've implanted an explosive charge in your head. Does that sound familiar?
Bare shoulders are forbidden in the Vatican premises, so the sexy dresses in the party would not be allowed.
The scene in which Julia brings Ethan back to life is copied almost identically from the scene in "Lost" (Director JJ Abrams' hit TV show) where Charlie is brought back to life. Incidentally, you can hear the "Lost" music played throughout the show, most noticeable when Davian is about to pick up the gun to kill Julia.