documentclass{beamer}
usepackage{media9}
usepackage{tikz}

begin{document}

begin{frame}[plain]
  begin{tikzpicture}[remember picture,overlay]
     node[anchor=south west, inner sep=0pt] at (current page.south west) {%
       includemedia[
         addresource=trump.mov,
         activate=pageopen,
         flashvars={source=trump.mov&autoPlay=true},
         width=paperwidth,height=paperheight
       ]{}{VPlayer.swf}%
     };
  end{tikzpicture}
end{frame}

end{document}