Movie playback in Latex/Beamer: the current situation with Adobe Reader, Okular and Impress

A few years ago, the only option to include multimedia content in Linux presentations was linking to an external player. While the situation is still far from ideal, we have a few options now:
  • Okular has been able to play back movies via mplayer for quite some time now. Features: pause and seek. Downside: poster images appear all black (fixed in KDE 4.10), control bar spacing.
  • Adobe Reader can embed external flash players and videos. Features: pause. Downside: Flash, works only with old acroread.
  • Open/Libre Office Impress movie playback finally works. Features: presenter console. Downside: plays immediately, pause and seek only outside presentation mode. Also, the LaTeX PDF has to be converted into page images.