Near the end, there is a scene at the embassy of the USSR. The brass plate at the entrance to the embassy reads, "Union of the Soviet Socialist Republic," although the correct form is "Union of Soviet Socialist Republics."
When Katrina is shown praying, she kisses the icon images on the lips. The icons are clearly Eastern Orthodox, and it's noted specifically that she's a devout Christian. But in Russian Orthodox tradition icons are always to be kissed on the hand, not on the lips.