$ LANGUAGE=C sudo apt-get -o Debug::pkgProblemResolver=true install kdenlive
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Starting pkgProblemResolver with broken count: 1
Starting 2 pkgProblemResolver with broken count: 1
Investigating (0) kde-l10n-engb [ amd64 ] < 4:15.04.2-0ubuntu1 > ( universe/kde )
Broken kde-l10n-engb:amd64 Breaks on kdenlive [ amd64 ] < none -> 0.9.10-2ubuntu2 > ( universe/graphics ) (< 4:15.04)
  Considering kdenlive:amd64 9999 as a solution to kde-l10n-engb:amd64 1
  Removing kde-l10n-engb:amd64 rather than change kdenlive:amd64
Investigating (0) language-pack-kde-en [ amd64 ] < 1:14.04+20140305.0ubuntu1 > ( universe/translations )
Broken language-pack-kde-en:amd64 Depends on kde-l10n-engb [ amd64 ] < 4:15.04.2-0ubuntu1 > ( universe/kde )
  Considering kde-l10n-engb:amd64 1 as a solution to language-pack-kde-en:amd64 0
  Removing language-pack-kde-en:amd64 rather than change kde-l10n-engb:amd64
Done
The following extra packages will be installed:
  dvdauthor dvgrab frei0r-plugins kdenlive-data libav-tools libavdevice55 libavfilter5 libcdio-cdda1 libcdio-paranoia1 libgavl1 libmlt++3 libmlt-data libmlt6 libquicktime2
  libsox-fmt-alsa libsox-fmt-base libsox2 melt recordmydesktop swh-plugins
Suggested packages:
  opencv-data khelpcenter4 x264 libsox-fmt-all
The following packages will be REMOVED:
  kde-l10n-engb language-pack-kde-en
The following NEW packages will be installed:
  dvdauthor dvgrab frei0r-plugins kdenlive kdenlive-data libav-tools libavdevice55 libavfilter5 libcdio-cdda1 libcdio-paranoia1 libgavl1 libmlt++3 libmlt-data libmlt6 libquicktime2
  libsox-fmt-alsa libsox-fmt-base libsox2 melt recordmydesktop swh-plugins
0 upgraded, 21 newly installed, 2 to remove and 0 not upgraded.