All I can remember is that a young girl finds out, after the death of her mother, that her father is not her "biological father" and she has to go meet her "biological father" because he wants her to come live with him. Her dad doesn't really have a choice and accepts for her to go spend some time with him or he asks her to go ... don't really remember!
additional information : The girl is about 10 to 13 years old, she and her dad are in in a small apartment and her biological father is rich and he is a really busy working man. Pretty sure she spend thanksgiving with her biological father but she was left alone because he had to work.
Please help me I've been looking for this movie for a long time!