When people drop the name "Chris Marker" in this country (if anyone's dropping it at all outside of art school these days), it's usually in reference to La Jettee, a 28-minute short composed almost entirely of still photographs, which is often mentioned as the source material for Terry Gilliam's Twelve Monkeys. Elsewhere in the world, Marker is known as the master of the non-fiction personal essay film. Like La Jettee, his documentaries (if you can call them that; the term applies better in some cases than others) are often structured as letters -- sometimes to the subject, sometimes to the viewer, sometimes to himself -- and always represent the sum of years spent collecting images across various media. Over the course of his 40 year career, the now-84-year-old Marker has seen technologies come and go, and has adapted with the ease and speed of an artist a quarter of his age. The Case of the Grinning Cat (released as Chats perchéson French TV two years ago; the version screening here has a just-finished, English-language narration) finds Marker rolling confidently into the age of the flash mob, and coming out with his own smirk surprisingly strengthened.