diff --git a/lms/djangoapps/courseware/tests/test_views.py b/lms/djangoapps/courseware/tests/test_views.py
index b1e066e08e..540e725801 100644
--- a/lms/djangoapps/courseware/tests/test_views.py
+++ b/lms/djangoapps/courseware/tests/test_views.py
@@ -258,29 +258,44 @@ class ViewsTestCase(TestCase):
         self.assertIn('Coming Soon', response.content)
 
     def test_course_mktg_register(self):
-        admin = AdminFactory()
-        self.client.login(username=admin.username, password='test')
-        url = reverse('mktg_about_course', kwargs={'course_id': self.course_key.to_deprecated_string()})
-        response = self.client.get(url)
+        response = self._load_mktg_about()
         self.assertIn('Register for', response.content)
         self.assertNotIn('and choose your student track', response.content)
 
     def test_course_mktg_register_multiple_modes(self):
-        admin = AdminFactory()
-        CourseMode.objects.get_or_create(mode_slug='honor',
-                                         mode_display_name='Honor Code Certificate',
-                                         course_id=self.course_key)
-        CourseMode.objects.get_or_create(mode_slug='verified',
-                                         mode_display_name='Verified Certificate',
-                                         course_id=self.course_key)
-        self.client.login(username=admin.username, password='test')
-        url = reverse('mktg_about_course', kwargs={'course_id': self.course_key.to_deprecated_string()})
-        response = self.client.get(url)
+        CourseMode.objects.get_or_create(
+            mode_slug='honor',
+            mode_display_name='Honor Code Certificate',
+            course_id=self.course_key
+        )
+        CourseMode.objects.get_or_create(
+            mode_slug='verified',
+            mode_display_name='Verified Certificate',
+            course_id=self.course_key
+        )
+
+        response = self._load_mktg_about()
         self.assertIn('Register for', response.content)
         self.assertIn('and choose your student track', response.content)
         # clean up course modes
         CourseMode.objects.all().delete()
 
+    @patch.dict(settings.FEATURES, {'IS_EDX_DOMAIN': True})
+    def test_mktg_about_language_edx_domain(self):
+        # Since we're in an edx-controlled domain, and our marketing site
+        # supports only English, override the language setting
+        # and use English.
+        response = self._load_mktg_about(language='eo')
+        self.assertContains(response, "Register for")
+
+    @patch.dict(settings.FEATURES, {'IS_EDX_DOMAIN': False})
+    def test_mktg_about_language_openedx(self):
+        # If we're in an OpenEdX installation,
+        # may want to support languages other than English,
+        # so respect the language code.
+        response = self._load_mktg_about(language='eo')
+        self.assertContains(response, u"Régïstér för".encode('utf-8'))
+
     def test_submission_history_accepts_valid_ids(self):
         # log into a staff account
         admin = AdminFactory()
@@ -320,6 +335,30 @@ class ViewsTestCase(TestCase):
         response = self.client.get(url)
         self.assertFalse('<script>' in response.content)
 
+    def _load_mktg_about(self, language=None):
+        """
+        Retrieve the marketing about button (iframed into the marketing site)
+        and return the HTTP response.
+
+        Keyword Args:
+            language (string): If provided, send this in the 'Accept-Language' HTTP header.
+
+        Returns:
+            Response
+
+        """
+        # Log in as an administrator to guarantee that we can access the button
+        admin = AdminFactory()
+        self.client.login(username=admin.username, password='test')
+
+        # If provided, set the language header
+        headers = {}
+        if language is not None:
+            headers['HTTP_ACCEPT_LANGUAGE'] = language
+
+        url = reverse('mktg_about_course', kwargs={'course_id': unicode(self.course_key)})
+        return self.client.get(url, **headers)
+
 
 # setting TIME_ZONE_DISPLAYED_FOR_DEADLINES explicitly
 @override_settings(MODULESTORE=TEST_DATA_MIXED_MODULESTORE, TIME_ZONE_DISPLAYED_FOR_DEADLINES="UTC")
diff --git a/lms/djangoapps/courseware/views.py b/lms/djangoapps/courseware/views.py
index 909c9379a6..a048309ce3 100644
--- a/lms/djangoapps/courseware/views.py
+++ b/lms/djangoapps/courseware/views.py
@@ -7,6 +7,7 @@ import urllib
 import json
 
 from collections import defaultdict
+from django.utils import translation
 from django.utils.translation import ugettext as _
 
 from django.conf import settings
@@ -710,15 +711,30 @@ def mktg_course_about(request, course_id):
                             settings.FEATURES.get('ENABLE_LMS_MIGRATION'))
     course_modes = CourseMode.modes_for_course_dict(course.id)
 
-    return render_to_response('courseware/mktg_course_about.html', {
+    context = {
         'course': course,
         'registered': registered,
         'allow_registration': allow_registration,
         'course_target': course_target,
         'show_courseware_link': show_courseware_link,
         'course_modes': course_modes,
-    })
+    }
 
+    # The edx.org marketing site currently displays only in English.
+    # To avoid displaying a different language in the register / access button,
+    # we force the language to English.
+    # However, OpenEdX installations with a different marketing front-end
+    # may want to respect the language specified by the user or the site settings.
+    force_english = settings.FEATURES.get('IS_EDX_DOMAIN', False)
+    if force_english:
+        translation.activate('en-us')
+
+    try:
+        return render_to_response('courseware/mktg_course_about.html', context)
+    finally:
+        # Just to be safe, reset the language if we forced it to be English.
+        if force_english:
+            translation.deactivate()
 
 @login_required
 @cache_control(no_cache=True, no_store=True, must_revalidate=True)