What were the movies about childhood sweethearts?

There were many movies like 'Heartbeat' that involved childhood sweethearts. Here are some examples: Love Letter: It tells the love story between two childhood friends. The two of them met each other since childhood and experienced many difficulties and separation. Finally, they met again in an accident and reestablished contact. 2. The Biggest Little Farm: The story of two young people who had a wonderful time in the countryside. The two of them knew each other since childhood and experienced the process of growing up and falling in love together. 3 " Our Song ": It tells the love story between two young people. The two people knew each other since they were young, and they went through school, work, and life together. [4. The Notebook: tells the story of a man and a woman's love story. The two of them have known each other since they were young. They have experienced many wonderful times together and finally have a happy ending.] 5 The Biggest Little Farm 2: Next Time: A sequel to The Blue Gate, which tells the story of two young people who spent their time in the countryside and how they met again.