* add: MovieTitleResponse * add: MovieRegisterDTO * add: DUPLICATE MOVIE exception * add: registerMovie() in MovieService * feat: add movie information - STAFF * refactor: variable DTO -> Dto
* add: MovieTitleResponse * add: MovieRegisterDTO * add: DUPLICATE MOVIE exception * add: registerMovie() in MovieService * feat: add movie information - STAFF * refactor: variable DTO -> Dto