In the beginning of the movie, when Hagrid drops Harry off at the Dursley's, you see a 1-year-old baby, with no hair, wrapped up in a blanket, like he was in the book. Then, in the flash back scenes, you see a little 3-year-old boy with curly, black hair. This seems strange to me. How could he grow h air and 2 years just for the flashback scene? A slipup? I think so!