Plugin "Subtitels downloader" can't be activated

Binary package hint: totem

Acording to the GNOME 2.26 release notes totem has a new "subtitles downloader". You' ll find under "Edit -> Plugins -> Subtitles downloader". But when i try to activate the plugin i get the error message

Plugin Error
Unable to activate plugin Subtitles downloader

Inside a terminal i see

$ LANG=C totem
/var/lib/python-support/python2.6/gdata/tlslite/utils/cryptomath.py:9: DeprecationWarning: the sha module is deprecated; use the hashlib module instead
  import sha
Traceback (most recent call last):
  File "/usr/lib/totem/plugins/opensubtitles/opensubtitles.py", line 26, in <module>
    LANGUAGES_STR = [(D_('iso_639_3', 'Albanian'), 'sq'),
NameError: name 'D_' is not defined
** (totem:6942): WARNING **: Could not load plugin opensubtitles
** (totem:6942): WARNING **: Error, impossible to activate plugin 'Subtitles downloader'

Using Ubuntu Jaunty with all the latest updates here.

ProblemType: Bug
Architecture: amd64
DistroRelease: Ubuntu 9.04
NonfreeKernelModules: nvidia
Package: totem 2.26.0-0ubuntu1
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: totem
Uname: Linux 2.6.28-11-generic x86_64