code: public int getAge() {
          int ret = 0;
          Date now = new Date(System.currentTimeMillis());
          Date filmDate = getAgeAsDate();
          if (filmDate != null) {
              ret = Math.round((now.getTime() - filmDate.getTime()) / (1000));
              if (ret < 0) {
                  ret = 0;
              }
          }
          return ret;
      }
docs: Get the age of the film list.
  
  @return Age in seconds.