\documentclass[11pt] {beamer}
\usepackage{media9}
\begin{document}

\begin{frame}[label=foo]
\includegraphics[width=.3\textwidth,page=1]{example-image-duck}\hfill
\includegraphics[width=.3\textwidth,page=2]{example-image-duck}\hfill
\includegraphics[width=.3\textwidth,page=3]{example-image-duck}

\includegraphics[width=.3\textwidth,page=42]{example-image-duck}\hfill
\includegraphics[width=.3\textwidth,page=43]{example-image-duck}\hfill
\includegraphics[width=.3\textwidth,page=44]{example-image-duck}
\end{frame}

\begin{frame}
	\includemedia[label = AA, width = \linewidth, height = 50mm, activate = pageopen]{}{run.mp4}
\end{frame}

\againframe{foo}

\begin{frame}
	\includemedia[label = AA, width = \linewidth, height = 50mm, activate = pageopen]{}{run.mp4}
\end{frame}

\end{document}