Other mistake: When Rory returns from being stranded overnight in Hartford, she comes up the walk and meets Lorelei on the porch. Although it's snowing significantly in the background, there is not a single flake of snow on Rory's hair, jacket, or backpack, and her hair is completely dry.
Other mistake: Rory asks Emily for baby pictures of Lorelai, but Emily says Lorelai burned them all because she had such a big head when she was little. But in "Love and War and Snow" earlier in the season, Emily, Richard and Rory looked at a baby picture of Lorelai in a bunch of petticoats the night Rory stayed over with her grandparents during a snowstorm.
Other mistake: When Rory and Lane get caught at the movies, Lorelei said she will not lie to Mrs. Kim because she has to respect that Mrs. Kim doesn't want Lane to do something. In reality, Lane is allowed to do things Mrs. Kim would not approve of all the time i.e. Listening to ungodly music, eating pizza, wearing different clothes.Shelby Morris