Dear Frankie (2005)

Nine year-old Frankie and his mom, Lizzie, have been on the move ever since he can remember. To protect her son from the truth, Lizzie has invented a story to satisfy Frankie's curiosity. She regularly writes Frankie a letter from his make-believe father who works aboard a ship traveling to exotic lands. However, Lizzie soon finds out his father's ship will be arriving in a few days. Now, Lizzie must choose between telling Frankie the truth and hatching a desperate plan to find the perfect stranger to play the perfect father.