diff --git a/django/core/urlresolvers.py b/django/core/urlresolvers.py
index cbc3e2b0e8..cb65e7d5de 100644
--- a/django/core/urlresolvers.py
+++ b/django/core/urlresolvers.py
@@ -66,7 +66,7 @@ class RegexURLResolver(object):
                     tried.extend([(pattern.regex.pattern + '   ' + t) for t in e.args[0]['tried']])
                 else:
                     if sub_match:
-                        return sub_match
+                        return sub_match[0], dict(match.groupdict(), **sub_match[1])
                     tried.append(pattern.regex.pattern)
             raise Resolver404, {'tried': tried, 'path': new_path}
 
diff --git a/docs/url_dispatch.txt b/docs/url_dispatch.txt
index c4603e69ac..3a3feea8be 100644
--- a/docs/url_dispatch.txt
+++ b/docs/url_dispatch.txt
@@ -2,7 +2,7 @@
 URL dispatcher
 ==============
 
-We're fanatics about good URLs.  No ".php" or ".cgi", and certainly not any of
+We're fanatics about good URLs. No ".php" or ".cgi", and certainly not any of
 that "0,2097,1-1-1928,00" nonsense. Django's URL dispatcher lets you design
 your URLs to be as pretty as the rest of your application.
 
@@ -24,10 +24,10 @@ Here's the example from that overview::
         (r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'myproject.news.views.articles.article_detail'),
     )
 
-You can see that the first argument to ``patterns`` is an empty string in the
-above example, but that argument is actually very useful. The first argument
-will be prepended to all the view functions in the urlpatterns list, so the
-above example could be written more concisely as::
+The first argument to ``patterns`` is an empty string in the above example, but
+that argument can be useful. The first argument is prepended to all the view
+functions in the urlpatterns list, so the above example could be written more
+concisely as::
 
     urlpatterns = patterns('myproject.news.views.articles',
         (r'^/articles/(?P<year>\d{4})/$', 'year_archive'),
@@ -43,11 +43,11 @@ above example could be written more concisely as::
 Including other URLconfs
 ========================
 
-You can also "include" other URL config modules at any point along the path.
-This essentially "roots" a set of URLs below other ones.  This is most often
-used for a site's "base" URLconfig; the ``ROOT_URLCONF`` setting points to a
-urlconf module that will be used for the entire site. Here's the URLconf
-for the `Django website`_ itself. It includes a number of other URLconfs::
+You can also "include" other URLconf modules at any point along the path. This
+essentially "roots" a set of URLs below other ones.  This is most often used
+for a site's "base" URLconf; the ``ROOT_URLCONF`` setting points to a urlconf
+module that will be used for the entire site. Here's the URLconf for the
+`Django website`_ itself. It includes a number of other URLconfs::
 
     from django.conf.urls.defaults import *
 
@@ -59,6 +59,22 @@ for the `Django website`_ itself. It includes a number of other URLconfs::
         (r'',                include('django.conf.urls.flatfiles')),
     )
 
+Note that an included URLconf receives any captured parameters from parent
+URLconfs, so the following example is valid::
+
+    # In settings/urls/main.py
+    urlpatterns = patterns('',
+        (r'^(?P<username>\w+)/blog/', include('foo.urls.blog')),
+    )
+
+    # In foo/urls/blog.py
+    urlpatterns = patterns('foo.views'
+        (r'^$', 'blog.index'),
+        (r'^archive/$', 'blog.archive'),
+
+In the above example, the captured ``"username"`` variable is passed to the
+included URLconf, as expected.
+
 .. _`Django website`: http://www.djangoproject.com/
 
 Passing extra options to view functions
@@ -70,5 +86,5 @@ in URLconf tuples. This third element can be a dictionary of extra keyword
 arguments that will be passed to the view function::
 
     urlpatterns = patterns('myproject.news.views.articles',
-        (r'^/articles/(?P<year>\d{4})/$', 'year_archive', {key: value, key2: value 2}),
+        (r'^/articles/(?P<year>\d{4})/$', 'year_archive', {key: value, key2: value2}),
     )