code: public ResultList<ReleaseInfo> getMovieReleaseInfo(int movieId, String language) throws MovieDbException {
          TmdbParameters parameters = new TmdbParameters();
          parameters.add(Param.ID, movieId);
          parameters.add(Param.LANGUAGE, language);
  
          URL url = new ApiUrl(apiKey, MethodBase.MOVIE).subMethod(MethodSub.RELEASES).buildUrl(parameters);
          String webpage = httpTools.getRequest(url);
  
          try {
              WrapperReleaseInfo wrapper = MAPPER.readValue(webpage, WrapperReleaseInfo.class);
              ResultList<ReleaseInfo> results = new ResultList<>(wrapper.getCountries());
              wrapper.setResultProperties(results);
              return results;
          } catch (IOException ex) {
              throw new MovieDbException(ApiExceptionType.MAPPING_FAILED, "Failed to get release information", url, ex);
          }
      }
docs: This method is used to retrieve all of the release and certification data we have for a specific movie.
  
  @param movieId
  @param language
  @return
  @throws MovieDbException