From c57d5d3931dc358b9ff8818b12f5694ddaf27be8 Mon Sep 17 00:00:00 2001
From: rubyist <rubyist.personal@openmailbox.org>
Date: Wed, 12 Feb 2020 19:19:34 -0800
Subject: [PATCH] Fix regex not accepting some IMDB links, falling back to
 generic without reason

---
 youtube_dl/extractor/imdb.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/youtube_dl/extractor/imdb.py b/youtube_dl/extractor/imdb.py
index 436759da5..e286d5ba6 100644
--- a/youtube_dl/extractor/imdb.py
+++ b/youtube_dl/extractor/imdb.py
@@ -15,7 +15,7 @@ from ..utils import (
 class ImdbIE(InfoExtractor):
     IE_NAME = 'imdb'
     IE_DESC = 'Internet Movie Database trailers'
-    _VALID_URL = r'https?://(?:www|m)\.imdb\.com/(?:video|title|list).+?[/-]vi(?P<id>\d+)'
+    _VALID_URL = r'https?://(?:www|m)\.imdb\.com/(?:video|title|list).*?[/-]vi(?P<id>\d+)'
 
     _TESTS = [{
         'url': 'http://www.imdb.com/video/imdb/vi2524815897',
@@ -43,6 +43,9 @@ class ImdbIE(InfoExtractor):
     }, {
         'url': 'https://www.imdb.com/list/ls009921623/videoplayer/vi260482329',
         'only_matching': True,
+    }, {
+        'url': 'https://www.imdb.com/video/vi3251092761?ref_=ttvi_vi_imdb_13',
+        'only_matching': True,
     }]
 
     def _real_extract(self, url):