Nature, the international weekly journal of science, has a collection of videos.  For selected articles and letters Nature will present streaming videos that feature interviews with scientists behind the research and analysis from Nature editors.  These videos include:

Mechanically Morphing Molecules

More videos are available on the Nature website.

Below are news postings from Chemical & Engineering News (American Chemical Society) Chemistry World (Royal Society of Chemistry), and EurekAlert! Chemistry (AAAS).