I think my mother and sister saw Julie and Julia together, so between that and the fact that my sister spent the 2007-08 school year studying in France (and our family went to dinner at her host family's house when we visited), my mom now owns both volumes of Julia Child's cookbook, plus between the two of them we have several volumes of other french cookbooks. You can imagine the cooking that goes on at my parents' house, especially before my sister found her job!
Actually, that reminds me of a story: we're all big fans of the lemon tarts one finds in the patisseries of Paris, so when my sister found a recipe for a lemon tart in one of her cookbooks, she decided to give it a try. Not realizing that in this particular French cookbook, the recipes were directed at the French and what they can find in their markets, my sister followed the recipe to the letter. Well, it turns out that the lemons the recipe called for were substantially smaller than the ones my sister bought, because I took a bite of the tart, and it was one of the most sour things I've ever put in my mouth. The icing on the cake, though, was when I opened the fridge a couple days later, and saw holes in the foil that was used to cover the tart. Yup-- the tart was so acidic that the foil began to corrode. And if I'm remembering correctly, the metal tart pan also discolored before too long.