Christina is a part-time employee at Kathleen Kelly's children's book store, The Shop Around the Corner. Some publicity material for You've Got Mail gives her last name as Plutzker, but the closing credits simply list her as Christina , and her surname is never mentioned in the film. Presumably, she's a college student, since at one point she mentions having a paper due Friday. She also says that if she loses her part-time job, she'll have to move to Brooklyn, so perhaps that's where her family lives.In the two scenes where Kathleen arrives to open the shop, Christina is there, waiting for her. This might be a reference to the original film The Shop Around the Corner, in which employees arrive before the shop owner and wait for him to open.Christina is presumably single. She's tried cybersex, but can't recommend it. Unlike Kathleen and George, she doesn't have a date standing next to her at the Thanksgiving party. She has a romantic streak, exhibiting a clear interest in the love lives of Kathleen and Birdie. She dislikes behavior that is mean - like those people who brag because they're tall .The original screenplay was at one time posted on the web, and it revealed a couple more minor details about Christina: She agrees with Kathleen's dislike of dating a man with a boat. Toward the end of the film, she encounters a man while jogging, and there appears to be a mutual attraction.