Science Matters is a monthly program co-sponsored with the Linda Hall Library. This month we focus on the birth of motion pictures. The birth of cinema is often thought of as a technological advancement, but by re-evaluating the work of Louis Le Prince, we are invited to consider how much it was, from the very beginning, an artistic and creative endeavor. Film is the only art form whose birth we can pinpoint to an exact day, and less than 150 years from that day, the things that used to define it as a medium - a big screen, projection, 35mm film, perforations - are no longer in use. How do we separate technology and artistic medium, and more importantly, should we?