Here are all the differences between the To All the Boys: Always and Forever book versus the movie. The Covey's Trip to Korea is A Lot Shorter In the books, the Coveys actually head off to Korea for a whole month after graduation in the middle of the book. Meanwhile, the film shows them going on their trip during spring break and is actually what kicks off the movie. The Covey's Trip Also Has a Different Reason Behind It While Lara Jean and her family set out to find the special love lock in Seoul Tower that her mom left when she was last there in the movie, there's a different reason for their trip in the books. Dr. Covey actually sends the girls to Korea to hang out with her grandmother and get to know her more.