Why scrapy can't crawl all url? ，When I find out the content is not in the database, and then found on the website, crawling in this way can be successful

class YinPin(CrawlSpider):
    name = "yingping"
    allowed_domains = ['movie.mtime.com']

    start_urls = ['http://movie.mtime.com/' ]

    rules = (
        Rule(LinkExtractor(allow=(r'http://movie.mtime.com/\d+/$')), callback='movie_info', follow=True),

    )


    def movie_info(self, response):
        selector = Selector(response)
        movie_url = response.url  #
        number = re.compile(r'\d+')
        movie_num = int(number.search(str(movie_url)).group())
        movie_name = selector.xpath('//*[@id="db_head"]/div[2]/div/div[1]/h1/text()').extract_first()
        movie_release_time = selector.xpath('//*[@id="db_head"]/div[2]/div/div[1]/p[1]/a/text()').extract_first()
        movie_type = selector.xpath('//*[@id="db_head"]/div[2]/div/div[2]/a/text()').extract()
        if movie_type:
            movie_type_l = movie_type.pop()
        movie_type = ' '.join(movie_type)
        self.logger.info(response.url)
        item = YingpingItem(
            movie_num = movie_num,
            movie_name = movie_name,
            movie_release_time = movie_release_time,
            movie_type = movie_type,
        )
        yield item