def local_data(path):
    """Return tuples of names, directories, total sizes and files. Each
       directory represents a single film and the files are the files contained
       in the directory, such as video, audio and subtitle files."""
    dirs = [os.path.join(path, item) for item in os.listdir(path)]
    names, sizes, files = zip(*[(dir.split('/')[-1], str(get_size(dir)),
                                 '##'.join([file for file in os.listdir(dir)]))
                                for dir in dirs])
    return zip(names, dirs, sizes, files)
Return tuples of names, directories, total sizes and files. Each
       directory represents a single film and the files are the files contained
       in the directory, such as video, audio and subtitle files.