The top mistakes in Birthday Girl http://www.moviemistakes.com/film2463 en Sat, 11 Oct 2008 05:55:15 +0000 27091 In the beginning of the film when John and Nadia are eating supper together, Nadia gives John a ring and speaks in Russian. The camera is at her back so we can't see her mouth move, but it is definately not Nicole Kidman's voice.