How to separate beamer columns with vertical lines

Question

I am using the columns environment with beamer.

\begin{columns}[c]
\begin{column}{0.5\textwidth}
\includegraphics<1>[width=0.35\textwidth]{dictmat-4.png}
\end{column}
\hspace{-50pt}
\begin{column}{0.50\textwidth}
\includegraphics<1>[width=0.35\textwidth]{dictmat-5.png}
\end{column}
\end{columns}

How can I draw a vertical line between two columns (i.e., the two figures?)

Answer 1

Try adding a \vrule between the two columns:

\begin{columns}[c]
\begin{column}{0.5\textwidth}
\includegraphics<1>[width=0.35\textwidth]{picture.jpg}
\end{column}
\hspace{-50pt}
\vrule{}
\begin{column}{0.50\textwidth}
\includegraphics<1>[width=0.35\textwidth]{picture.jpg}
\end{column}
\end{columns}