Great Inheritance (2006)

Obviously, both dramas are about inheritances. However, what binds these two dramas together are the women who shape and mold these rich boys into men who can truly grasp the importance of the inheritance they have been given.

Both leads end up with kids that change them for the better. In the movie it's about a teacher who is inspired to be a real teacher b/c of his students and in GI it's a gangster that gets a kindergarten handed down to him by his grandma - and he has to go from wanting to sell the place to saving it. - one is a movie and the other is a drama :)

Both dramas have ex-gangsters as male leads who finally realize what family is. In Bad Family, Dal Gun gets a real family out of the fake one he created. In Great Inheritance, Hyun Se finds a family in the kindergarten he inherits. Both dramas also have plenty of romance and comedy.