Tropical islands movie about an heir

I saw this movie many years ago and I’m not 100% sure about the details, in the first part of the movie there are two kids (a boy and a girl), they are friends, the boy has an old relative who is important in that tropical place, the important relative has a right-hand man that dislikes the boy, the second part of the movie is about the boy, now a young man, inheriting his relative business, the right-hand man of his relative is now at his service and proud of the young man, the right-hand man starts spreading the notice that the “Great something” is looking for a wife, and one of the women he can meet could be his childhood friend.